*BLF Ultimate Lantern Project*~updates, July,12,2018 Video is online!

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DBSAR
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*BLF Ultimate Lantern Project*~updates, July,12,2018 Video is online!

-This began as an idea noted to me from Southland, and as a lantern guru i was immediately interested. Along with Kronological joined in on this as he has the contacts with manufacturers & sellers along with great Group Buys, it all began.

I am building somewhat a “prototype”, a lantern based from common components we all are familiar with, and this will be designed with a a lot of room for modding for those who wish. As we all know 99.99 % of all LED lanterns available commercially are absolute crap in stock form, usually with crap tints, inefficient garbage 5mm LEDs, low run times, bad modes, made from cheap plastic & components, low output, very glarey on the eyes when at eye levels, the bad list goes on. I have some 125 + LED lanterns in my collection, and at least 95 % of them are modded in some way at different levels. Almost none of them however have the “perfect” set of perimeters to serve as a perfect lantern for camping, power outages, survival, long term use, compactness, durability, output balanced with run times, good useful modes for lanterns, etc.

What i will be building here is a compact, durable lantern with the best perimeters & features that my best lanterns have combined into one, using known components, to combine the best run times, output, lighting tint, least glare, compactness, & features. It will be LiIon 18650 based, can run a single 1, 2, 3 or even 4 18650 cells, all will be in parallel for safety & increased run times, have the best warmer high CRI tints suited for continuous lantern use, compact, sturdy, durable, great modes, zero-parasitic drain when off, etc, I will start with the best battery tube for that purpose i could think of, the popular SkyRay King.

Of all the different drivers, LED tints, etc. i have modded into many lanterns & tested, this project will use the Nanjq 105C Q-Lite Rev. driver, with the fourth-star set for using the moonlight, Low,Medium, and High modes. The best tint range for lantern use i found to be between the 2700K to 3500K warmer white range, (Warmer whites are much less “glarey” on the eyes, have much better CRI than the cold whites, and as tested by independent university lab studies warmer colored light to amber light can reduce eye fatigue, & oddly reduce stress & hypertension during longer exposures (as lanterns run continuously as the main ambient light.)

face it, as humans we lived for thousands of years lit by warm, amber colored fire, lamps, and the sun, not by blueish light from fluorescent or cold white LEDs. (as in the fact that the blueish, gloomy, gray light from cloudy days, & mercury vapor glarey street lighting can be depressing, while the warmer light from the sun does the opposite.

I will start with a XM-L 6C tint, (3500K warm white) and may switch it over to a 7D4 tint later for testing, (close to 2700K incandescent) Others may prefer neutral tints, & i do have some lanterns with 4000K & 4500K tints, but from experience the most preferred tint range from people that seen my lanterns in use at night seem to prefer the warmer tints. I will be using a clickie switch, to avoid electronic switches to avoid any parasitic drain. The Q-Lite driver will also have a reduced number of 7135s, most likely three from my other lantern tests. Keep in mind, from testing i found most XM-L2 & XP-L LEDs are most efficient between the .700MA to 1 amp range, producing the best lumens versus amps usage balance. For lanterns, ( unlike directional flashlights & throwers) over-driving an LED for more lumens don’t seem to be as beneficial as getting the best run-times, as lanterns will run continuously for many hours at a time, and need to possibly last for days, & even weeks on single charges. (some of my lanterns modded with a 2-7135 Q-lite 105C (700mah on high) on High-mode driving an XM-L2 6C & 7D4 tints, running on four average 2200mah 18650 laptop-pulls in parallel, will run 20 plus hours continuously on highest mode, (a full weekend of camping use) and produce the light close to that of a 60 watt incan household light bulb.

This build will be a design variant that can be built in mass numbers by a manufacturer, and allow a lot of room for those who wish to mod it for more output, tints, etc. It will be also “down firing” meaning the LED will be mounted on a heatsink from the top facing down, this method produces the best side & down direction lighting and the least eye glare when used on a table, shelf, or hung from a tree or ceiling. Most cheap LED lanterns bought tend to be up-firing, and basically glares in the eyes when on a lower table, and practically useless when hung outdoors in a tree or for camping. ( also face it, there are no ceilings outdoors to “bounce” light off for up-firing lanterns or tail-standing flashlights. ( i will get into the disadvantages of using diffusers lon regular flashlights later.

- In the first photo below, is an SRK clone host, a Q-Lite, LED, and some basic common components that i will begin with on this Lantern project. ( including a sturdy acrylic jar that will be used for the “globe shade” of the lantern.
Second photo, shows the first mod to the SRK clone host, (i band-sawed the top section of the SRK off just above the threadded LED plate, then polished it smooth. The third inset-pic shows the basic start to the lantern build idea.

  • For those interested in a possible Group buy on a manufactured variant of this lantern when its completed, let us know here.

I will post more on this as the project continues with more photos as it progresses. Smile

UPDATES / September 2017 – Field-Test a success! (read below) – the prototype was a hit at the camp this weekend. It was the smallest of all the modded bright LED lanterns we had on the trip, ( it could hang from a belt carabiner easily, and fit in a hoodie or jacket pocket as we tested. – it was also the brightest with best tint of all the LED lanterns we had there. (i did the field test with a XP-L V3 5D tint emitter, that has probably the best neutral tint available from a CREE emitter for this type of use) also it emitted the light in the widest direction range than any of the other lanterns in the test at the camp, ( widest angle of light emitted from down to up with the down-firing LED location and the flat white base beneath the emitter)
For run time, it was as expected, it ran the entire 4 night trip on a single set of four 18650 2500mah cells, (an average of 3+ hours per night on high-mode continuously, from 9 pm to midnight or 1am) (On this field-test its Q-Lite Driver was set to use two 7135 chips, for average of 700mah on high-mode, which gave the light the best balance of output & long run time that is needed for these types of uses.)

- Here below is the BLF/SRK lantern prototype (the one at the far right of the photo) compared to my two best & brightest modded LED/Li-Ion lanterns in my arsenal, along with a Coleman 321 Easi-Lite Naptha Camp Lantern on the far left of the pic.) The 2nd from left is a coleman LED modded with an XM-L 3D tint & 3-mode driver, the 3rd-from-left is a Defiant modded with with 30 warm white (3000K) Luxeons and Q-Lite driver with 2-7135s:

- Below photo showing the BLF Lantern prototype on the log in the center of the photo, ( on high mode)

*+UPDATES below
Here is the basic Specs of the prototype:

- one, two, three or four 18650 cells. ( soon possibility able to run on single 26650 or 32650)
- four modes, ( moonlight, Low, Medium, High. – Zero parasitic drain with lockout. – easily moddable. – 7A3 natural warm white XP-L
- Glareless Down-firing design, with flat-white up-reflector.
- can be hanged or tabled upright or upside down, with balanced all-direction degree flood.
- Tested Runtimes & output: (***have not Sphere-tested the lumens yet) >High / 7 hours (equivalent to 40-watt Incandescent Lamp >Medium / 41.5 hours ( roughly a 20-watt Incan. > Low / a month ( same as a 3-watt night light) >Moonlight / so far un-measurable, but estimate 3 to 4 months continuous based on amp-draw from four 3000mah 18650’s in parallel. ( i cant wait that long for the test of run time.
- Beer-can sized, able to fit in jacket pocket or pack-sack pocket.

UPDATES #2 – February,23,2016

Below image collage shows next steps on this prototype build:

- Next i stripped all the junk of the original driver plate. (will clean it up later before i install new components) ( IMAGE #1)
- As this will be a mechanical clicking instead of an electronic switch, (to avoid parasitic drain, and better adaptable for future mods.) i will have to modify the driver body section of the lantern to adapt a rubber clickie switch boot and switch. (IMAGE #2 )
- I bored out the original electronic switch hole to fit the boot, but i made sure the hole is slightly smaller than the boot, so it seals water resistant/tight in the body. I also counter-sunk the boot below the body surface, (notice the counter sink chamfer, familiar with Zebralights) to help prevent accidental turning on in packsacks, camp bags, etc and protect the switch boot from damage. ( IMAGE #3)
- Here with boot in place. ( IMAGE #4)
- The switch will mount on a bracket i will install on the original stripped driver plate on the inside. ( IMAGE #5)

UPDATES #3 – April,1,2016

Ok so more progress on the BLF Lantern Prototype!

  • Below image descriptions:
    - after stripping the original SRK driver board bare, i dremeled it clean of the traces, except for two pads to solder the switch back plate to, and the positive & Negative trace contacts. (IMAGE #1)
    - i then soldered the steel angle back to hold the clicky switch in place. Also added the wires and support to mount the popular Nanjq 105c Q-Lite Rev. driver in place. i removed 5 of the 7135s to lower the amps for the LED emitter to bring the LED into that “sweet spot” of its most efficient amp range vs. output to increase the run times in all modes. ( it would be easy to leave more 7135s on the driver for more output, but at a sacrifice of run times and loss in heat. with this design there are many options of modding the lantern with custom firmware, modes, even different drivers. ( IMAGE #2)
    - Here showing the driver & clickie switch in place. (IMAGE #3)
    - This design also has tons of extra space between the driver plate & the lantern head, to add a TP4056 built in charger, ( to charge the four 18650 cells in parallel. This configuration woudl take longer to charge the cells, but some advantages are that its much safer to charge them this way, (unlike the Supbeam X40 built-in charger imbalanced charging issue fiasco last year we had to endure.) also each cell will charge balanced with each other in parallel and a lower charging amps, helping to extend the life of the cells.
    For off grid use, a 7-watt USB solar panel phone charger will charge the four cells in this manner in a day’s worth of sun. But for now i will not install the charger until i get the Prototype lantern completed and testing is performed. ( IMAGE #4)

*Below image Descriptions:

- Ok next is the top cap of the lantern, which will serve as the heat sink for the LED emitter. I used a solid block of billet Aluminum, then machined it down to sort of match the Lantern body and fit to the top of the Acrylic lantern lens that will be used. The center is left protruding down to serve as the base mount for the LED star. This is a hefty, solid chunk of aluminum, so it will make a great heat-sink to allow some modding of driving the LED of your choice with more amps if so desired. I also drilled holes on each side for the para-cord handle/lanyard. ( IMAGE #1, #2, and #3)
- i painted the head with a high-solids enamel paint, then baked it on in a toaster oven at 200 degrees for 20 minutes. ( its not as durable as anodizing like on the original SRK body, but it is tough and looks very close to the anodized aluminum.

I forgot to take a photo of the acrylic cup (used for the lantern lens) epoxied & bolted to the original SRK threaded Star mounting plate, and will do so later)

- so far shows the Lantern prototype before i wire in the LED , secure the lantern top, and add the Para-cord lanyards. (I decided i will start with an XP-L U5 7A3 tint for the first tests, as they are very close to that of an Incandescent 40-watt household bulb. :

UPDATES #4 – April,3,2016

Ok below is the first test of the beam profile of the Prototype lantern! (Test done 3 hours ago tonight, dark outside, and all lights turned off in the house, camera shutter settings are close to what the human eye would see it.)

- Here is the lantern on “High mode” , XP-L U5 7A3 tint / Q-Lite Rev driver with three 7135 chips / Four CGE18650CG light green laptop pulls, (all tested at 2200mah avg. The lantern is on the top of the red popcorn machine on the island in the kitchen. Here you can see the lantern emits nearly the same amount of light up, as it does upside-down, with a lower percentage out the sides at 90 degrees to cut eye glare to a minimum. The tint of the 7A3 is a beautiful warm white with good color rendition and warm hue. On high it appears to illuminate the room equally to a 40 watt incandescent light bulb.

- Below i moved the BLF Lanter to the top of the fridge:

Now below are indoor beamshots of the lantern in the same spot, but one is right side up, and the other is upside down, showing how “balanced” the directional output is. ( Red arrows shows lantern inverted & right side up)
Unlike 95 % of all factory lanterns which has the LEDs upfiring causing glare and almost no downward illumination, this design works both great in a room and outdoors while reducing eye-glare which is a big issue with bad factory designs.

—- More beam shot photos coming soon, some comparing the prototype to my other “best” stock & modded LED lanterns, to Electric lamps with incandescent bulbs, and to gas camping lanterns, both indoors and outdoors. In late May this prototype will get 4 days of testing on a wilderness camping trip planned too.
I will also do a tint test, using some different tints to get a feel of what will work best. ( though it is possible for a manufacturer/seller to offer a production version in various Tint & LED choices. I will also draw up a specification sheet and blueprint drawing so that Kronos can work with a manufacturer on a production version. Smile

UPDATE: Oct,8,2017: – A TP4056 type USB Micro charging circuit has been added to the lantern prototype.
With full depleted cells, the lantern pulls 1.06 amps from the USB charger, and that drops as the cells charge to full. (this gives roughly 250mA to each cell so its a slower charge, but will be better for the cells longevity in the long run. Right now the Lantern will charge depleted cells, (below 3 volts) to full in a day charging on a 1.0~2.0A wall charger. I am currently testing the lantern Run-times per night versus charge times on a 11-watt solar USB folding charger per day, to test its ability as an off grid light for indefinite use.

Below is a cross-section of the Prototype lantern design as of mid October. I am currently redesigning the top section of the lantern to change the assembly design, ( to use a single center bolt/post to hod the top together, and use two LED emitters on each side of that post instead of the one possibly.

UPDATE, Nov,13,2017: – Driver design being worked on by DEL , With Lantern driver, USB charger, AND power bank function! ( More details can be found in Post #736

Updates: October,23,2017 Solar charger testing over the last week or so has been a great success. I used my new Eceen 10-Watt USB folding solar charger to charge the lantern each day after using it each night. After running the lantern on High-mode for 4+ hours each night, the 10-watt Solar charger recharged the lantern to full each day, ( back to 4.18 ~ 4.20 volts each time) after every night running. (voltage of the cells after the uses varied between 3.5 to 3.7 volts) only one day was cloudy the whole day, thus not giving the lantern a full charge, but did top it up to 3.97 volts. This means the lantern can be run indefinitely as an off-grid light source with a minimum of a 10 watt solar charger each day.

Update: April,12,2018 My apologies to everyone for the lack of updates, as mentioned above i did a job change, preparing for separation from my ex, and dealing with life’s hard times over the last few months. I am working on the prototype in the garage however, and will have the updated & simpler prototype ready to show, and with a cross section & specs info to see if we can get this rolling soon. With the disappearance of TheMiller from BLF also made it more difficult, and will need help with the rest of the remaining team and any help from new team members expertise to get this into a production model would be good. My experience with talking to manufacturers is not much as compared to what TheMiller was able to do as he did for the BLF Q8, he was a great key member who have the knowledge to work that step. Have patience everyone, I am still pushing on this project to make it a reality, regardless of the delays..

UPDATES,April,16,2018 – Post #1169 So with the help of fellow member here on BLF, RobertB and Miranda of Thorfire, we acquired a Q8 to use as a new prototype for the BLF lantern. it has been discussed before that building the lantern as compatible with the already awesome BLF Q8, will reduce costs especially if we work with Thorfire to build the production model, as they already have the blueprints and design criteria for the Q8.
- i do need to talk to talk to the developers & designers of the Q8 driver, as it may be possible to use that driver for the lantern, if i can figure out how to reduce the maximum output amps on it maximum modes to around 1.2 amps, ( or even up to 1.5 ~ 1.7 amps to the LEDs then somehow have it step down either by timing, or wired remote temperature sensor mounted on the lantern head. As we all like the mode-groups & programming of the Q8, they woudl probably work great for the lantern too. (only issue is if that will cut costs down, and if we can add the charging input, (and possibly the USB powerbank feature)
So once i receive the Q8, it will be focused on as the prototype for the BLF lantern. I hope the team from the Q8 development can chime in here with help & suggestions.
I have already spoke to Miranda of Thorfire on the thoughts of working with them to build the ultimate BLF lantern.+*

UPDATES,April,20,2018 – Post#1179
The Q8 sample/mule arrived for the updated prototype. I have already torn down the head, and have the driver out, and doing measurements of where to cut the head down to incorporate the new lantern shade/lens and center support post. First thing is i need some guidance on what to do with the Q8 driver to reduce its maximum output in all the high modes down to 1.5 amps possibly? I could leave it as s, but with the high output current in the lantern running continuous it would overheat the LEDs & lantern head very, very quickly and likely cook the LEDs or melt the lens attached to the solid aluminum head. I plan on the new prototype to run two down-firing LEDs on each side of the center support post/bolt instead of the single LED as in the 1st gen prototype. Also will use a frosted main shade/lens with no inner diffuser instead of the clear lens & inner diffuser as the 1st prototype does to reduce manufacturing costs. The lantern head I have already blue-printed and in thw works on the Q8 head design, right now i need to driver experienced team members ToyKeeper, DEL, and even possibly the original Q8 team to help directing me to modding the driver to reduce its peak current to the LEDs. As of now I will keep the current Narsil program in place for the first prototype lantern, using the #7 mode set. But we will look to Toykeeper to possibly add the extra good modes including the candle & sunset modes to the firmware later. More updates soon as i work on the structure of the Q8 head for the lantern Smile

UPDATES,April,30,2018-With Photos!
-Work is underway on the new Version-2.0 prototype, now based from the BLF Q8 body, using the Q8 illuminated switch. First, the new BLF Lantern prototype will be slightly shorter & more compact than the V1 design. It will also use a new center-post/bolt head design, which is stronger & simpler than the V1. The head top cap is thicker solid aluminum to help with better heat dissipation, and a new paracord lanyard attachment design. The new V2 also will use either two or four down-firing LED emitters, the first test of the prototype will be using the same star & XP-L emitters as in the Q8 flashlight, and will use the original Q8 driver, (once i figure out how to limit the peak amps to the LEDs.) for now with the Q8 firmware & modes. (until we can work out the new Lantern firmware programming with the addition of ToyKeeper’s Candle & sunset modes.)
This new design will make the lantern simpler to build, and hopefully reduce production costs, and with Thorfire the interested manufacturer, (been communicating with Bary & Miranda of Thorfire and they have expressed interest in this new BLF project) Thorfire already has the designs and schematics at their facilities for most of the parts that are common with the BLF Q8 flashlight. The completely new parts that will have to be blueprinted designed into production will be the head section, driver changes, firmware, and the addition of a USB charging capability. Below are photos of the new V2.0 Prototype. The new design will also use a moderately frosted main globe/lens instead of a clear one, and eliminate the second internal frosted diffuser globe.
I hope to have the V2 prototype functioning, and beginning field testing with it in 3 weeks when we go on a wilderness canoe trip at the end of may.

- The machined, solid aluminum head section (which will serve as the heat sing for the LED star(s)

Updates, May,7,2018
- Ok, I have the new lantern head for the V2 Q8-based prototype completed! I reflowed two 3000K XP-L emitters to the original modified Q8 copper star, (i only had two of these bare LEDs so i could not use all four pads on the star.)
Like the V1 design, i have used a full flat/matte white upper & lower plate light reflector, which works far better at increasing the output through 90 degrees of the lantern globe, while reducing the glare found in most other factory built LED lanterns on the market. Most lights you find on the market commercially make the mistake of using a chrome or shiny “reflector” causing an increase in glare, hard shadows, and does not really work to put it in simple terms. I have tested every possible surface type form gloss, eggshell, matte, chrome polished, and the full matte/flat white is the only one that emits the most lumens, reduces the most glare, and smooths out the hard-shadowing the best.
- So.. right now I am stuck at the driver, and how to safely lower to the maximum amps to the LEDs..

Below, is the new V2 Prototype head ready for driver modification & first testing, (take notice of the center post bolt design, Much stronger & simpler than the V1, and there is a “sleeve tube” over the center bolt that hides the LED star wire leads, ( the tube is also painted flat-white to aid in reflecting light 90 degrees out the sides”

Below showing the solid aluminum head, with the modified Q8 copper star with the two 3000K XP-L 7A LEDs mounted in place using screws & thermal paste, and the surrounding surface painted flat white on the head, along with the base painted the same flat white. This feature seems to create an increase in gathered light, as the light itself is reflected back & forth against each other, increasing the efficiency of the 360 degree output, and smoothing out the hard shadows in the process while still eliminating the eye glare found in most lanterns:

The lower photo is of the driver, whee I am currently bogged-down on how to lower the total amps while preserving all the Q8 modes for the tests, ( to roughly the equivalent of two or three 7135 chips, but not sure of how to do that yet.. ( Hinting for the masters of the Q8 driver design & build to chime in here, ( along with ToyKeeper as right now with all other team members MIA ToyKeeper is the only knowledgeable member we have helping with the BLF Lantern build for the driver & firmware part..

UPDATES, May,8,2018

- The V2 BLF Lantern prototype is now up & running! First tests are underway, (with measurements, comparisons to the V1 and other lanterns, etc.)

- I have yet to still install the TP4056 charger board & plug port, and wire than into the Q8 driver so it can be charged up via Solar panels, wall plug, or vehicle port like the V1 has. I may also change the green switch boot LEDs to a amber or orange LEDs, so that can serve better as a nightlight/firefly option when the lantern is off. SO far, the V2 seems to be slightly brighter on high mode (using the 5-mode group of the Q8 driver, & on high its drawing 1.05 amps from the four 18650 cells, which will give this lantern a run time average of 15 + hours , at around 600 ~ 650 lumens on high mode, using four 3500 mah cells from previous testing at that amp range in the V1 lantern & other modded lanterns i have.
Right now, the V2 has two 3000K XP-L 7A emitters, which gives it a more incandescent light similar to a regular filament light bulb, close to that of a 50 watt incan on high. ( the V1 currently has a single 4000K XP-L emitter.

( photos coming soon showing the smoother & more even light emittance of the V2 over the V1 with the new frosted main single globe/lens & dual emitters.)

- A new basic blueprint & design drawing is under way as well, which will need to be created as a finalized CAD for Thorfire to have the base to work from towards a production version. As for the final driver design & workings to add the charger option, that will require the help of those knowledgeable in that field, as ToyKeeper has worked on adding the Candle-mode and sunset mode for the lantern.

Below Showing the BLF Lantern V2 (on the left in the photo) giving first light, (on the Low mode) along side the V1 lantern on low mode.

Below you can see the warmer tint 3000K of the two XP-L emitters of the V2 on the left, , versus the 4000K single XP-L in the V1 on the right.

Below you can see the new V2 prototype is slightly shorter & more compact than the V1 version. (also the V2 has a new lanyard design where the paracord stays outside the lantern head, making it more sealed.
The actual Lantern blueprint will have some of the body fins removed to slim it down and lighten its weight, ( as all the fins are no longer needed to cool that mid-section area like it does in the Q8 flashlight does, also the head will have some fins added to help with cooling the LEDs.

UPDATES, May,18,2018:

- Did some Beam-pattern comparison shots tonight of the new V2 prototype against the original SRK-based V1 prototype, the BLF Q8 with the best diffuser i found (and have tested that fits perfectly) and compared it to the best & most used other modded LED lanterns i have, a modded survival multi-lantern, a modded Noma dual-LED lantern, and a modded Coleman LED.

Photo below shows them from left to right:

First up, is a collage of the lanterns placed against a white flat, smooth back-drop to show the beam patterns of the lanterns, with a flat-plane below them to simulate a table or counter surface. The Nikon D5100 DSLR settings were the same for all 6 photos, (F5.6, S-1/180,) and all lanterns were on low or medium modes set so they were all roughly the same output, ( averaging 250 ~ 300 lumens)

Now here is where the details of my findings are shown..

- photo #1 is the V2 BLF Lantern prototype, with two down-firing XP-L 3000K LEDs. As of right now this new head design has the smoothest, most even beam pattern of all my lanterns with the least artifacts and least tint shift. This is due to the moderately frosted main lens/globe, (with not second inner globe) and the use fo 2 or 4 LEDS & senter post instead of one LED and side post design. Also, the trick here to get this smoothness and higher beam angle from down-firing LEDs, is both the top surface & bottom surface painted with a clean-white “Flat” coating, (not gloss white, or chrome coating like 90 % of commercially available lanterns we see on the market today. Chrome plating or shiny surfaces just adds glare, hard-lighting, and artifacts. ( as seen on the #2 , #4, #5, and #6 photos. Flat-white surface form my past tests reflect the most light in a smoother flood-pattern than polished or shiny surfaces, and with the top & bottom surfaces of the head flat white, the reflecting back & forth also “amplifies” the light out the sides, increasing efficiency and flood angles. Notice in photo #1, where the V2 has the smoothest pattern, least tint shift, and most down firing light for table illumination, and also the least hard-light glare.
-
Image #2 is the V1 prototype, with a single down-firing XP-L 4000K LED, it only has a bottom flat-white surface, but the top surface around the LED is shiny. for some reason this increases the tint shift and hard lighting, (though better than the other lanterns, its not as good as the V2.

- Image #3 is a stock Q8 with the diffuser. As most flashlights with diffusers, there is almost no illumination downward on the table that it rests on, and most of the light
is directed upwards. While ok indoors, but outdoors its impractical and has the most glare on the eyes of all these lanterns when resting on a table below the eye line.

- Image #4 is a much larger Coleman modified LED lantern, with single down-firing XP-L 4000K. while it has good table illumination because of its much bigger size, its diffuser and single LED produces some hard-light artifacts in the beam.

- Image #5 is a Survival Lantern i modified with a single down-firing XM-L 3000K LED, While its tall lens/reflector adds to the beam angle, it has some artifacts due to the shiny bottom surface.

- Image #6 is a modified Noma dual-LED lantern. with two XP-G2 3000K LEDs, This lantern has both down-firing AND up-firing LEDs, and in between them is a diffuser “tube”. While this design does increase the overall beam output angle, the up-firing LED does produce more eye-glare, and the framed lens adds shadows & artifacts.

Next up below, i added the bottom tripod mount to the lantern as talked about earlier in the topic, ( in this case i added a 1/8” aluminum plate inside the bottom cap, then threaded it with the 1/4-20” standard tripod hole, then sealed in the inside to make it waterproof.

then here below showing the V2 BLF lantern prototype on a camera tripod. This woudl be a great option outdoors at a camping area, where it will illuminate a larger area.

  • UPDATES, May,23,2018**

I just did some lumens measurements in my Sputnik, (Light Integration Sphere) and got some impressive results from the Samsung LH351D 4000K High-CRI LEDs over the Cree XP-L 3000K LEDs.

The Lux-sphere i have is modified with a special adjustable diffuser plate for the sensor, so it can also measure light sources from the center of the sphere along with flashlights from the top, (flood-type lanterns placed inside the sphere as opposed to flashlights set on top with a directional beam.)

(As shown below with the BLF V2 Prototype placed inside the sphere for output measuring)

Below is a photo showing two new LH351 4000K LEDs flowed onto the Lantern (Q8) PCB, (the loose LED to the left in the photo is one of the two XP-L 3000K emitters removed after the first test)

Here is what i found: > The LH351 4000K High-CRI emitters, measured to be more efficient, and have a higher output than the XP-L 3000K at the same current & test perimeters.

- (two) Cree XP-L 3000K ————————— / 630 lumens / 1.09 amps / High-mode ( maximum of the 5-mode group on 3-7135 AMC chips)
- (two) Samsung LH351 4000K High-CRI——/ 745 lumens / 1.07 amps / High-mode ( maximum of the 5-mode group on 3-7135 AMC chips)

I did notice a slight tint shift on the Samsung emitters over the High-CRI Nichia 219 series, but the LH351s sem to be much more efficient and capable of higher outputs.
Next up is to test with four LH35 4000K High-CRI emitters, to see the difference from using two of them.

In comparison, the V2 prototype appears very close to the output along side a factory 800-lumen Noma LED 11-Watt AC light bulb. Tomorrow i will test the lantern in the sphere in comparison to the 11-watt 120-volt household bulb to see how close the factory specified 800 lumens is to the lantern. Cool

Below, is a photo of how i replaced the original Q8 Narsil driver’s FET for the V2 Lantern prototype with AMC 7135 regulators. I used a dead (stripped) 105C PCB, and jumpered it into the Q8 dribver after i removed the FET. This gives me the ability to modify the driver from one up to eight 7135s, ( but i will likely keep it at either three or four AMC regulator chips as for lantern use full amp current is not needed to achieve a good balance of output versus run times. (for lanterns the run times are very important as they will be used in a manner where they are run for many hours at a time continuously as opposed to a flashlight.) considering that the near perfect Narsil firmware offers so many mode options, using up to four 7135 chips may be a practical idea, for those times that close to 1000-lumens may be needed if we can control the heat safely for longer periods or running in such a small size lantern as the BLF Lantern will be. I estimated that with four 7135s, the draw amp load on the cells would be roughly 1.4 amps average on maximum mode, on four good 3600mah cells, so in theory & past testing i did that should still be able to give 8+ hours of run time at between 900 to 1000 lumens output.. based on my past run time tests of modified lanterns using Li-Ion cells, (as long as we can somehow manage the heat from the head of the lantern at those sustained outputs for continuous running.

+So after further tests and checking on the one LED that flickered & went out last night after running for 2 hours during a test, (at only 1.07 amp load combined,)its definitely a dead emitter.. if did not get hot at all. Its my luck to get a bad LH351 for the lantern testing..
I have flowed on the three good ones, but can’t do a test of the four compared to two LEDs until i can fins another one..+

UPDATES, MAY,30,2018
Ok, the first field-run for the V2 Prototype was a great success! even with only three of the 351D 4000K Hi-CRI emitters working, it was brighter, smoother beam, and better tint than the V1 prototype that uses a single XP-L on the same number of 7135 chips.
We had 4 campers on this trip, and all of them never knew of the lantern being a prototype to be developed into a production lantern. They were all impressed at its small size, its design, the modes, (Q8 modes) the ability to run the entire weekend trip (2 nights) on high mode, on a single set of cells without needing charging, and definitely liked the color of the light tin far better than any of the other cool-white stock store bought lanterns they seen & own. The new Samsung LH351 4000K Hi-CRI LEDs were impressive. The color rendering was really good, along the levels of Nichia’s 219C LEDs, but much brighter & more efficient. I did notice a slight tint shift down closer to the 90 degree viewing angle of the LED surface, but not nearly as bad as Crees XP-L LEDs.
Either way, the new LH351D LEDs are the new preference for use in a lantern of this level & output. The light just made colors so much more natural and visible. The initial 4000K LH351s were from Member azhu. I was unfortunate to get one that was defective, (reason why i had only three in the lantern at the weekend test) But with the generosity of fellow member BlueSwordM who sent me four 3000K LH351Bs to test he sent a replacement 351D 4000K to do the Lux & output tests with four LEDs. He also send some other goodies including a 4056 charger module to add to the lantern like the V1 has to add charging capability.

Below is a photo of the lantern hanging on a string line at the camp, ( on Low Mode #2) just after sunset:

Seen here is the V2 Prototype hanging on a tree, showing the illumination of the old camp table. ( note the yellow water bowl which has a god representation of the High-CRI nature of the 351s. The DSLR camera was set to Auto Iris for these photos & no flash, the time was roughly 9pm just with twilight in the sky after the sun went down.

Below the Lantern is resting on a log-seat. The light seems a little warmer in the photos, but the tint is actually very close to that of 4000K to the eye.

Now this photo below really shows the V2 lantern shining its ability. Here it is hanging form the white tarp edge, illuminating the campsite very well on High mode. Take note of the colors, including the orange Pine-needles covering the ground below, the green of the stove, etc. they all are very close to what we see with the eyes during the day. The lantern gave a good, smooth wide lit area on High to that equivalent of a 11-watt LED household light bulb. ( again the camera settings were set to automatic, time was roughly 9:20 PM, was a little twilight left in the sky. Already the other fellow campers on this trip plan to buy several of these once they go into production. They really like the idea that the lantern is small enough to pit into a hoodie pocket or backpack pouch, and give out more light output than every other lantern we had at camp.

UPDATES June,20,2018 Cross section of the BLF V2 lantern added. Further field testing going great! photos coming soon. also will have more detailed specifications for the lantern to provide to Barry & Thorfire soon. all we may need is to find someone to draft up a CAD of the lantern in the cross-section drawing below if Barry needs a more detailed version for Thorfire to work on.

IMPORTANT: -I just received a message from Barry, and he told me he apparently left Thorfire, but he can still communicate with the factory that built the Q8, (an affiliation for Sofirn i believe) Barry mentioned to me he can still work with us, but more so if we go with a different brand name possibly. any suggestions or idea are welcome. Also i want to create a PM group for everyone who has contributed to the lantern project so we can communicate by message easier.

- BLF/ Lantern specifications Sheet, Updated June,25,2018

– Lantern features & design:
- Compact design based from the BLF Thorfire Q8 mid-section and battery section, with great run times, output, and tint ramping, mode groups, built-in USB charging capability, and versatility. Unlike most all commercially available LED lanterns, many of them have a lack of usable modes, low run times, built from plastic & less durable, have a low CRI color rendering and very cool white or bluish light tint. This new lantern design has all those issues eliminated for much more practical & versatile area-lantern for camping, off-grid, cabin use, or emergency lighting. With a built in USB charging circuit (set at 1.0 amps to 1.5 amps progressively) this lantern has a unique feature of its design, with the usb (possibly a efficient TP4056 chip controlled Lithium Ion charger circuit that is connected directly to the battery side of the driver allowing the lantern to still run on lower modes while charging at the same time. Using a solar panel charger of 10 watts or more, the lantern can be a infinitely sustainable off-grid light source for remote locations where there is no electricity.

- Based from the BLF Q8, (using the same battery tube and similar midsection, with a similar driver but instead of using a FET, this lantern uses four 7135 regulator chips to control current to a lower maximum draw current of 1.4 amps. The firmware will be developed specifically for lantern use by Toykeeper of BLF, and will have most of the same mode groups as the Q8 flashlight, but with added modes including Candle-mode, sunset-mode, & possibly a tint ramping mode, (which allows the driver to ramp/fade between 3000K LEDs to 4000K LEDs, which will require a third lead for the LED star to have two channels, (one channel for three 3000K 3535 type LEDs and three 4000K 3535 LEDs, possibly the new Samsung High CRI LH351D-3535 series of LED emitters. There will be an added 1/4-20 threaded tripod mount placed in the bottom of the the lantern base.
Much of the battery tube, midsection, and base will be the same as the q8, but the mid section will have less cooling fins as it will not get as hot or require the same heat dissipation as the Q8 does, allowing the lantern mid-section to be more streamlined. The base has to be slightly thicker metal to allow the threaded tripod mount. Threads are to be anodized as the Q8 to allow it to be able to lockout by unscrewing the body from the mid-section. The electronic switch should use a yellow or amber LED instead of the green as in the Q8, so the switch can be used as a night light when the lantern is off. roughly 45 degrees around from the on-off switch, the USB charging port is recessed with a rubber plug-cap to seal out water.

-( if cost allows, the circuit could have an USB power bank option too, to allow the lantern to be a power source for charging phones, but must have a minimum of 2.0 amps at 5 volts for charging larger smart-phones. Also if cost allows this charging & power circuit option can be the new USB-C format.

- The mid-section design will have a similar shelf in the mid section like the Q8 has for the LED star, but for the lantern it has a threaded center hole for the assembly bolt, small holes near the center bolt hold for the wires, & a notched ring to hold the center wire-tube. Also there will be an o-ring seal around the outer perimeter for the lens/globe to seal on to prevent water from entering. The lens/globe is to be made from either a durable poly-carbonate material (for crack resistance) or a HDPE type material. ( not acrylic material, as acrylic cracks to easily. The frosting should be between 35% to 40%, to allow the most light transmission but also give a good, smooth balanced light diffusion to lower hard-light and shadowing. (Most LED household bulbs are roughly 60% frosting, the lantern should be less at 35 to 40%. ( meaning the LED emitter will be visible through the lens, but still mildly frosted.) The lens/globe is shaped like a tapered “cup” to allow more downward light with less reflection glare, with a solid bottom one-piece area to add strength to the globe. Also the bottom surface and the center tube needs to be a flat/matte bright white material, as matte white smooths out & reflects more light smoothly than silver or other shiny surfaces does. (See cross section drawing & description) The head of the lantern is a solid aluminum unit for the LED star to mount on as a heat sink, also will have the center tapered bolt hole for assembly. the upper area of the lens/globe will fit into a grove around the underside of the head, with a rubber seal/o-ring to seal out water.The LED star will be a 2-channel design, using six 3535 LED pads, with every second pad around the PCB star traced to be on the opposite channel, (three LEDs per channel for the tint ramping option.) The top of the head will have two lanyard holes, (drilled angular from the top to the sides so the holes do not pass to the inside of the head unit, and a 550 para cord lanyard attached with sturdy resin hook-type end clip at the top ends. (see cross section drawing)

-Specifications:

- uses up to four 18650 LiIon cells (in parallel configuration)
- modified Q8 driver design, four 7135 regulators, (no FET) new firmware developed by Toykeeper.
- 170mm tall x 57mm wide
- Lighted electronic switch, (same as Q8 but with amber or yellow LEDs.
- Mode groups similar to Narsil, but with additional Lantern special modes, and three wire tint-ramping feature & modes.
- USB charging, ( either USB-micro or newer USB-C with power bank feature.
- down-firing LED design, with three Samsung LH351D 3000K high-CRI LEDs, and three Samsung LH351D 4000K High CRI LEDs.
- Average between 850 to 1000 lumens on maximum mode. ( tested with Samsung LH351D 4000K LEDs with four-7135 regulators on Q8 driver & Q8 Narsil firmware.
- maximum mode run time tested at 1.4 amps draw on four 3500mah high capacity Panasonic 18650 cells measured at roughly 12 hours.
- o-rings at top & bottom of lens/globe and around upper bolt head to seal out water.
- electronic & mechanical lock out.
- tripod mount on bottom for use as a raised lantern on a tripod.
*
UPDATE: June,29,2018* -Ok, here are the first photos comparing the 4000K Samsung 351D LEDs to the 3000K 351B LEDs. I modified the V1 of the lantern to ue four LEDs the same as the V2. Because i only have the 351B 3000K versions, they are less efficient than the 351D versions, (They are sort of like comparing the 119 series Nichias to the 219 series, as the 351B has a smaller die than the 351Ds. So in this case i have to increase the amps to the LEDs to get the same brightness output. In the photos below, the 4000K High-CRI is on the left, and the 3000K High-CRI is on the right. ( images are gamma-corrected and adjusted to appear what the eyes see depending on your monitor settings)
The 4000K V2 on the left is on mode-4 at roughly 1-amp to the emitters, & the 3000K has roughly 1.3 amps to the emitters. (first photo is 1/320 shutter, F2.7, D5100 Nikon, second is 1/180 shutter, F2.7, D5100 Nikon) To the eye the 3000K has a very nice incandescent light tint, while the 4000K has a nice pure white tint slightly whiter than a good halogen.

update: 2-channel MCPCB designed. Here is the basic design of the 2-channel MCPCB for the lantern for the 3000K ~ 5000K ( or 2700K ~ 5000K LED emitters) to work for the tint ramping. After some tests, i found that having the different color temp LED pads in-line with each other linear from the center post/tube, created the smoothest tint mixing beam pattern. (*Red ring is the white center tube that covers the wires and the center bolt) two other black holes are for screws to mount the MCPCB to the lantern head.
(open to conversation.)

Update: July,7,2018

– new cross-section of the BLF LT lantern showing the design differences to the BLF Q8.

UPDATE: July,11,2018

- Part1 and Part2 of the video is online! ignore my fast-talking east coast Canadian accent & beginner video recording. *lol
hope it helps explain a bit more of the lantern design & info.

here:

July ,18,2018:

dealgrabber2002 wrote:
DBSAR,

Any pictures of the lantern in action from your latest outing? I saw the one you posted before… the great outdoors..

I did take a couple new photos of the BLF lantern in field-testing.

Photo below is the BLF V2 & V1 lined up with all the other best lanterns i have on the trip east. ( here the V2 BLF prototype is in the middle of the line up, The one right in front of the little tree in the center of the row/photo. Here you can see that its brighter than all the larger lanterns, ( all lanterns are on maximum modes) many of them are modded and are brighter than they were from the factory. (The only really brighter lantern is the huge apocalypse Lantern on the right of the photo i built from from the OldLumens BLF custom build competition)

Here is a close up, showing the V2 prototype in the center with the 4000K LH351D LEDs, and the V1 prototype to the left of th eV2 with the 3000K 351B LEDs.

Below the V2 BLF lantern with the 4000K LEDs is on the chair in the left of the photo, and the V1 of the lantern with the 3000K LEDs is on the chair on the right of the photo behind the campfire:

Next below, we will start an “ Interest List” with the help from sbslider, to gauge a number for when we can look into getting this lantern a reality into production. (with name, and number of lanterns interested in.)

~INTEREST LIST: Uptated June,20,2018 sent by sbslider.

1 DBSAR
2 DBSAR
3 DBSAR
4 DBSAR
5 DBSAR
6 SaniPE
7 brad
8 Gunga
9 Andyman
10 emarkd
11 chuckhov
12 Bc412
13 Lonelydad
14 radioshaq
15 radioshaq
16 tebeve
17 qandeel
18 Wrathbringer27
19 southland
20 Easyrr
21 jkbam
22 Jinx
23 raven38571
24 Gavstein
25 Spasmod
26 The Miller
27 bikenber73
28 netprince
29 M78
30 MtnDon
31 RobertB
32 dealgrabber2002
33 wedlpine
34 peaceandmelons
35 Muto
36 siata94
37 blueb8llz
38 carmantl
39 SawMaster
40 Andybibbville
41 kronological
42 ReManG
42 T.H.Cone
44 gloomywarfreak
45 antiparanoico
46 vinte77
47 tzmxxhh
48 Aardvark
49 waxing twilight
50 Chicken Drumstick
51 mpaul320
52 mhanlen
53 uqs1000
54 JPM3
55 Melven
56 RollerBoySE
57 apt323
58 Shur
59 cbrake10
60 Paul321
61 muzzleblast
62 archimedes
63 Stittville Ed
64 garrybunk
65 jmoots
66 AlabamaMan
67 sandanbob
68 Cula
69 Charga
70 Minimoke
71 electricjelly
72 18sixfifty
73 kbear99
74 RaVeN
75 JakeDjanitor
76 Jesjes
77 Jesjes
78 MaxBeam
79 mochaeater
80 Dwantink
81 kal444
82 gicos
83 Dirt
84 Kozy
85 gungoat
86 gungoat
87 gungoat
88 Suncoaster
89 tenohfive
90 theoldbill
91 xcentric
92 xcentric
93 osb40000
94 g_sintornillos
95 Bonham
96 kbro
97 ri chevy
98 veovius
99 MCT
100 Tom E
101 Sledgestone
102 Enelooper
103 rumack
104 Northwoods
105 Danstorm_72
106 Dc38
107 Illumenated
108 Melven
109 PleinPhare
110 osb40000
111 osb40000
112 osb40000
113 acml
114 rag
115 RayGo
116 CJW
117 WWWW
118 Camo5
119 alternety
120 alternety
121 alternety
122 seestuff
123 gleamer
124 MountainKing
125 waxing twilight
126 Jvrthp321
127 Aardvark Spleen
128 Aardvark Spleen
129 BrianK
130 MG
131 Wildthing
132 Slayer1
133 Mstevens113
134 MAD777
135 jmoots
136 fantomR
137 igeigeige
138 Subterrestrial
139 kal444
140 dpflug
141 osb40000
142 angerdan
143 BazzH
144 DavidEF
145 Lemurian
146 VietnamVet
147 jigsaw
148 LEDAdd1ct
149 sac02
150 sac02
151 sac02
152 dotBLF
153 maverick06
154 Abe87
155 specialk
156 lumenzilla
157 osb40000
158 osb40000
159 JasonJ
160 JasonJ
161 whooda4
162 The Imp
163 patmet
164 what_are_birds
165 asnidi2
166 Sordoslux
167 JorisFRST
168 osb40000
169 strayz
170 waxing twilight
171 nqcken
172 stuartrue
173 zachary6227
174 CJ Avlis
175 Lucy@66
176 cujo255
177 ISO
178 fantomR
179 twodollarbill
180 borealis
181 Truck
182 DarthTader
183 Satan@103TFS
184 I_SpY
185 voip
186 anycolourfloyd
187 swissbianco
188 Trouthead
189 igeigeige
190 erikbuch
191 borealis
192 weklund
193 Dutcheee
194 contigo
195 scdaf
196 brno602
197 Norddeutscher
198 octav
199 jtedder1967
200 jtedder1967
201 apt323
202 el_duderino
203 hardlybowing
204 autodidact
205 OldSee
206 leroycp
207 erikbuch
208 erikbuch
209 southland
210 southland
211 southland
212 southland
213 flasky
214 vinte77
215 lichtpfadfinder
216 shirnask
217 shirnask
218 shirnask
219 Caleb
220 Caleb
221 Caleb
222 cjoe7
223 cjoe7
224 cjoe7
225 cjoe7
226 Zulumoose
227 k-wong
228 AirBreaker
229 AirBreaker
230 ISO
231 ISO
232 ISO
233 Satan@103TFS
234 Box
235 candor
236 candor
237 baldo21
238 baldo21
239 Dep668
240 Dep668
241 Lazy-R-us
242 Lazy-R-us
243 maildroid
244 unknown00101
245 Sciencetists
246 gangstead
247 Bo4ka
248 zelee
249 Far Thrower
250 scdaf
251 SIGShooter
252 WaylonJennings
253 WaylonJennings
254 Kindle
255 yasenf
256 chinooker
257 Dirt
258 Dirt
259 malamask
260 SoCalTiger
261 dbesselt
262 Coscar
263 CJ Avlis
264 jimmy23
265 weklund
266 Pukachi
267 Pukachi
268 Pukachi
269 HighCaliber
270 HighCaliber
271 caffeine_addict
272 fuzun
273 SoulCraves
274 SoulCraves
275 Scorpia
276 adsum
277 ikkentobi
278 The Imp
279 The Imp
280 spinynorman
281 spinynorman
282 Tally-ho
283 skol
284 skol
285 skol
286 skol
287 neabue
288 penumbra
289 CJW
290 drjamesfox
291 themaindude
292 themaindude
293 korpzgrinda
294 korpzgrinda
295 Sprinkles
296 LG
297 noetik
298 nightshark
299 Koaksijalac
300 cncyana
301 Erethryn
302 Cano
303 gravelmonkey
304 Cula
305 Cula
306 Guns712
307 kotobuki
308 kotobuki
309 juaquin
310 timbo114
311 Minty
312 Minty
313 Sherbona
314 Sherbona
315 drjamesfox
316 johnpc
317 johnpc
318 wilwok
319 to 349 craig-IL
350 BazzH
351 MyDangus
352 jmpaul320
353 fneuf
354 fneuf
355 mickscott
356 mickscott
357 jacktheclipper
358 mrstealyourgains
359 eigenmeat
360 BigBird
361 Dutcheee
362 LSX
363 dekozn
364 JakeDjanitor
365 Victorio
366 Victorio
367 Abe87
368 Abe87
369 Abe87
370 Lamont56
371 tkd15
372 Left Wing
373 jmoots
374 sbslider
375 SIGShooter
376 SoulCraves
377 derfyled
378 Stittville Ed
379 zipelgas
380 Mr.Poppy
381 IH8MYX
382 IH8MYX
383 dalama32
384 legan710
385 BT100
386 sgt253
387 steve42
388 cyrex
389 Bhevo47
390 LanternGuy
391 dmsoule
392 bobofire
393 joeangi
394 Angel Martínez
395 phosphor
396 MtnDon
397 sgt253
398 ToyKeeper
399 Savydude
400 Dman7777
401 Kodachrome40
402 Metallurgist
403 Boldo
404 Neomis
405 Splott-Light
406 Blazer296
407 Mr.Scott
408 object_in_space
409 d_t_a
410 JJMcGee83
411 Norddeutscher
412 aremihc
413 cujo255
414 Moomoomao
415 Xebrecito
416 FlashMax
417 noboneshotdog
418 congo
419 xray291
420 DrHook59
421 DrHook59
422 Givememyhatback
423 Lexworth
424 Angel Martínez
425 Bill 63
426 Alux
427 mustig
428 Nguyen
429 Nguyen
430 aremihc
431 prdonut2k7
432 Tredd
433 TheBo
434 FHAREN
435 FHAREN
436 FHAREN
437 herold
438 Yakuzoko
439 Yakuzoko
440 Dirty_Pierre
441 Dirty_Pierre
442 Rokypop
443 osb40000
444 osb40000
445 Angel Martínez
446 martook
447 OPEN
448 random071970
449 random071970
450 martytown
451 JohnCalvin
452 kahvitahra
453 Benidin
454 Benidin
455 donpachi
456 donpachi
457 bamboo
458 Aulic458155
459 SilverHazeFlash
460 m000
461 zcbtjwj
462 zcbtjwj
463 ferthur
464 t3rminal
465 t3rminal
466 staticx57
467 thecrc
468 thecrc
469 pooptoast
470 bossf350
471 bossf350
472 morning_wood
473 unit311
474 morning_wood
475 marsalla
476 mattar12
477 Luminosity
478 Luminosity
479 cop
480 Kodachrome40
481 LordRashmi
482 Snoballz
483 cloggy
484 arditty
485 arditty
486 barrybluejeans
487 nodoubt
488 nodoubt
489 sportlampa
490 rfd673
491 rfd673
492 inn
493 sherman2k
494 twodollarbill
495 twodollarbill
496 twodollarbill
497 xcentric
498 bhtune
499 bhtune
500 netgear68
501 netgear68
502 g_sintornillos
503 teacher
504 teacher
505 Kodachrome40
506 donttellmywifeiambuyinganotherlight
507 MichielSanders
508 mattar12
509 Dewalt101
510 Cliwilnew
511 tex
512 uncle_muscle98
513 mikeymikey
514 litenutz
515 Eraursis1984
516 Lips
517 sycomonkeys
518 Seeker1
519 derfyled
520 martook
521 Raider
522 IndyArcher
523 IndyArcher
524 egrep
525 egrep
526 ohbreeeezy
527 CmdrKron
528 Ozythemandias
529 ReallyInToCheese
530 jmbow24
531 llh
532 Mr.Scott
533 FaserUS
534 FaserUS
535 DeusLight
536 Goodtobeking
537 turpulator
538 turpulator
539 rocktmtflyfisher
540 rocktmtflyfisher
541 weklund
542 weklund
543 whipskirtayeyay
544 jigsaw
545 zeratull
546 gi.lumens
547 kinniver
548 kinniver
549 thebaum
550 Hiatus1r8
551 Hiatus1r8
552 bb1usaf
553 mlodyulek
554 hezekiah
555 freethink
556 nqcken
557 gravelmonkey
558 d_t_a
559 rockhound42
560 tender
561 Finno
562 KaiserSosa
563 twoleftfeet
564 twoleftfeet
565 dimitris
566 Tdh66
567 Southcovekayak
568 cheffernan
569 Torre246
570 Jerrod
571 BobTB
572 PKT
573 af241244
574 PillowRobot
575 dchoe
576 Nonchalants8
577 sbslider
578 briancharles
579 flashycali
580 cwb
581 cwb
582 808Hi
583 XD9
584 XD9
585 GreenLights
586 GreenLights
587 bibin
588 bibin
589 BRAVO
590 Flashlight
591 Boro
592 Boro
593 Lionheart_2281
594 Jaynick
595 Theadlee
596 Couchmaster
597 BlueSwordM
598 koyotee
599 toxiccoccyx
600 boostedsubie
601 mattej
602 Nicloaas
603 Tender
604 smed1275
605 nonsuch
606 lovetheguitar
607 rangerhd
608 igeigeige
609 808HI
610 solRNY
611 ssschen
612 nqcken
613 Enelooper
614 trigger619
615 trigger619
616 turkey
617 cypherz
618 BorisBar
619 BorisBar
620 vestureofblood
621 northbeard
622 illusum
623 illusum
624 illusum
625 crankynetadmin
626 Itsme
627 Light Years
628 Grappler
629 ValuseeKeR
630 bunnicula
631 Redlyne22
632 Maildroid
633 Maildroid
634 Pranpun
635 Pranpun
636 Nicko69
637 Seeker1
638 Caseit741
639 Jvrthp321
640 bansuri
641 HRABIA
642 feralcomprehension
643 feralcomprehension
644 feralcomprehension
645 I_like_lamb
646 I_like_lamb
647 dbmeed
648 dbmeed
649 Masejoer
650 Masejoer
651 808Hi
652 808Hi
653 808Hi
654 blinks
655 cabundo
656 cabundo
657 TUNE4IT
658 jsmn4vu
659 biczownia
660 biczownia
661 biczownia
662 biczownia
663 DBSS
664 DBSS
665 O26Rcr
666 O26Rcr
667 adrn77
668 bikedave99
669 darbonius
670 Hairy_Steve
671 NotSoBrightGuy
672 WolfDiesel
673 Sonullo
674 SpaceGrass
675 AgentWhiteBread
676 TimeZero
677 TimeZero
678 Steel_1024
679 skinny_tie
680 zoysiamo
681 sovereignknight
682 Persechini
683 racnigel
684 gabby85
685 toehead
686 velocraig
687 Newlumen
688 lmcmann
689 lmcmann
690 kwisatz
691 kwisatz
692 lohtse
693 lohtse
694 goshdogit
695 vresto
696 AEDe
697 jordanZHP
698 FrankFlash
699 kommessy
700 Parallax
701 Agro
702 prepro
703 XXX-Man
704 Cyrex
705 BT100
706 BT100
707 Voltron88
708 Kulumatic
709 RaVeN
710 derfyled (2)
711 syracuse
712 Kratomas33
713 Madtoffel
714 jdunlap27284
715 DeusLight
716 DeusLight
717 mattej
718 BlueSwordM
719 Rick
720 Tsunamii
721 F.i.l.a.s
722 Newlumen
723 Newlumen
724 Jesjes
725 Jesjes
726 pc_light
727 sbslider (3)
728 fixed it
729 Yohan110
730 blueb8llz (7 total)
731 blueb8llz
732 blueb8llz
733 blueb8llz
734 blueb8llz
735 blueb8llz
736 nkresho
737 candor
738 candor
739 deathless
740 byarnell05
741 byarnell05
742 byarnell05
743 wheremydonky
744 wheremydonky
745 SebaZ74
746 Torre246 (2)
747 teacher
748 teacher
749 teacher
750 teacher (total 5)
751 shirnask (total 4)
752 Dioda
753 Roobarb
754 Seeker1
755 Rylee900
756 Rylee900
757 Phlip
758 Norddeutscher
759 Norddeutscher
760 juhha
761 ZozzV6
762 cu42
763 d0190535
764 DatBobaLife
765 yasenf
766 dbare
767 beam0
768 barretttx
769 Raptor2018
770 schlafsack01
771 rockymtnflyfisher
772 Basuini888
773 Basuini888
774 barretttx
775 slowtechstef
776 ulfm1
777 bobkido
778 Bill63
779 a_idoux
780 itsme
781 flashycali
782 KayakMikeP
783 stolikat
784 alifpb98
785 alifpb98
786 MichielSanders
787 Lol
788 Deelirium
789 Deelirium
790 Deelirium
791 KayakMikeP
792 tindrum42
793 tindrum42
794 tindrum42
795 tindrum42
796 thommy
797 candor
798 candor
799 R10500
800 klrman
801 Aleister
802 AgentWhiteBread
803 chinooker
804 O26Rcr
805 O26Rcr
806 FBsLights
807 FBsLights
808 dmsoule
809 carmantl
810 carmantl
811 Caseit741
812 Caseit741
813 isuckatmakingupnames
814 Gj
815 Gj
816 Gj
817 Gj
818 bigdawg
819 Typevii
820 Kendo
821 mattlward
822 nick91900
823 nick91900
824 severide
825 Polyesterboy
826 Greggles2018
827 Bd7
828 Pezo
829 bigdawg
830 praveendk
831 dyates
832 KevinZA1988
833 nonsuch
834 severide
835 SKV89
836 sstock
837 Joat
838 prisma
839 FilipeBanana
840 Stereodude
841 NobleX13
842 NobleX13
843 OKCOREY
844 OKCOREY
845 Plat
846 Chatika vas Paus
847 Chatika vas Paus
848 SilentObserver
849 vestureofblood
850 peabody
851 peabody
852 arisdes
853 Madtoffel
854 asciiphil
855 junglejim13660
856 Jagger
857 contactcr
858 apt323
859 leo l.
860 joechina
861 soldsoulrockroll
862 Matchoo
863 MCT
864 gadabout
865 gadabout
866 oto
867 Satisfaction
868 Geese
869 falcora
870 gleamer
871 Yourrid
872 Yourrid
873 Doobyscoo
874 Doobyscoo
875 xikteny
876 prdonut2k7
877 Phlogiston
878 Phlogiston
879 atbglenn
880 vinte77
881 vinte77
882 lohtse
883 sleasys14
884 qandeel
885 qandeel
886 puglife2
887 severide
888 severide
889 ARMS.AARON
890 aslpg
891 LGW
892 aslpg
893 geetee03
894 Unloco
895 Flash-O-Maniac
896 Pidro
879 zcbtjwj
898 zcbtjwj
899 Pegaso
900 The_Driver
901 systemagnostic
902 superbob47
903 BRAVO
904 adam7027
905 adam7027
906 firstcipher
907 theadlee
908 theadlee

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Edited by: DBSAR on 07/18/2018 - 14:37
pilotdog68
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I’m probably not in myself, but I like the idea! The side-flooder on my M6 has a medium mode at ~600ma, and it really is more light than you might expect. Perfect for long-endurance illumination.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

SaniPE
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Sounds just what I’m looking for! I’m in.

brad
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I’m excited, and I think that high doesn’t need to be very high at all, even when using a lantern for working on something like a generator, the kind of guy that has a quality lantern won’t be looking to light up the entire garage brightly, he will have a headlamp to handle the boost he needs for detail work.

In the living room we want the family to have a good bright light available, but we don’t want it so bright that people avert their eyes and shade their eyes from it.

But I think you made it clear that you have already thought of all that, long ago.

I look forward to this thread. Have you thought of a setting for simultaneous lantern and ceiling bounce, for a better room filling effect, and flashlight use?

Gunga
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Sounds very well thought out. I’m in.

Andyman
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Looks great! Wouldn’t you know, a lantern sits firmly next on my list of “new lights I can rationalize,” but as you clearly stated, decent stock options are essentially non-existent. My best thought until now was to start with something like this (modded to run off 18650’s, of course), but a down-firing SRK variant sounds simpler, more durable, and more compact.

I’m very interested in a potential group buy (depending on price, of course), but also interested in following your prototype build… The challenge of a home-made version also sounds attractive, so I might need to buy one + make one, because, you know, it’d probably be smart to have something in a different tint as a backup…

Thanks again for getting this started! Excited to see how it progresses regardless of outcome. Cool

emarkd
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Yeah this is intriguing. I’ve got one lantern, a Fenix CL25R, but this seems like a very different project. So consider me interested.

chuckhov
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I’m Interested!

-Chuck

DBSAR
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brad wrote:
I’m excited, and I think that high doesn’t need to be very high at all, even when using a lantern for working on something like a generator, the kind of guy that has a quality lantern won’t be looking to light up the entire garage brightly, he will have a headlamp to handle the boost he needs for detail work.

In the living room we want the family to have a good bright light available, but we don’t want it so bright that people avert their eyes and shade their eyes from it.

But I think you made it clear that you have already thought of all that, long ago.

I look forward to this thread. Have you thought of a setting for simultaneous lantern and ceiling bounce, for a better room filling effect, and flashlight use?

!{width:50%}http://img.diytrade.com/smimg/2069312/43410369-4858116-0/_Nitefighter_Ni...!

for indoor use in rooms with white ceilings, the design of this lantern with a down-firing LED, simply set it on a higher shelf or table upside-down, and it will bounce quite a bit of light from the ceiling around it if preferred. (those tests & photos will be coming too. Smile I thought about the idea of building it with two switchable LEDs ( one on the top facing up and the inside one facing down) but that would just add complexity & cost to a manufactured version.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Andyman
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DBSAR wrote:
I thought about the idea of building it with two switchable LEDs ( one on the top facing up and the inside one facing down) but that would just add complexity & cost to a manufactured version.

Agreed – I really like the idea of a simple, dedicated, non-crappy lantern. If we want something to aim at the ceiling, well, we all have at least a dozen options for that, don’t we? Wink
I have one that’s switchable between upward (flashlight-ish) and downward (lantern-ish) firing, and it doesn’t do a good job at either.

DBSAR
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Andyman wrote:
DBSAR wrote:
I thought about the idea of building it with two switchable LEDs ( one on the top facing up and the inside one facing down) but that would just add complexity & cost to a manufactured version.

Agreed – I really like the idea of a simple, dedicated, non-crappy lantern. If we want something to aim at the ceiling, well, we all have at least a dozen options for that, don’t we? Wink
I have one that’s switchable between upward (flashlight-ish) and downward (lantern-ish) firing, and it doesn’t do a good job at either.

Very true, we all already have tons of flashlights for ceiling bouncing/tail standing indoors. But when it comes to acual lanterns that can be used outdoors for area lighing there are way to many crappy, plastic, bad-tinted, low-runtime lanterns with unreliable “gimmics” added to them already available from sellers & stores,
But for outdoors, or in places/rooms where white smooth ceilings are not an option, a simple, durable, long running, 360-degree lantern is needed.

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

Bc412
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I’m interested
As long as the cost doesn’t get too crazy

Lonelydad
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Depending on the price, I may or may not get one, but I am interested.

You don't really need a parachute to skydive. But you DO need one if you want to skydive twice!

radioshaq
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I am in!! Possibly multiples if price is agreeable.

tebeve
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Very interested.

qandeel
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Interesting project. I’m in.

 عُمَانْ

Wrathbringer27
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I’m in!

Words can be broken,
so can bones.

southland
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Can’t wait for this one. The way I look at it, this lantern will have no competition. Nothing else like it on the market, everything now is plastic, alkaline powered, and no name emitters. Can see this being a huge seller to campers, hikers, fishermen, hunters, and such. Looking good DBSAR.

DBSAR
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southland wrote:
Can’t wait for this one. The way I look at it, this lantern will have no competition. Nothing else like it on the market, everything now is plastic, alkaline powered, and no name emitters. Can see this being a huge seller to campers, hikers, fishermen, hunters, and such. Looking good DBSAR.

The plan is to build a lantern than can fit in a coat pocket, produce the light of a 60 watt light bulb, have good high CRI tint, and run for several nights of use on high, (Or for weeks on lower modes) without the need of recharging the batteries, be durable, solid, compact, useful when needed, and do what a lantern is supposed to do. (and be open to further modding like all of here like to do if we wish to. Smile

That Canadian flashlight guy & Lantern Guru -Den / DBSARlight

FmC
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This sounds like a great project.

Just one question; Where are you getting the SRK clone with threadded LED plate?

Easyrr
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I am in Smile nice project!

jkbam
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I could certainly use a good lantern, I’m in.

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Put me down for one please, dependant on price and absolutely no detectable PWM.

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I am almost with you, I’d love to see a really good led lantern come to life. But there’s one thing that all that plastic garbage has to its advantage, and that is the use of safe chemistry batteries. So I’m not really sure I would like to see this with 18650 batteries, but perhaps rather with AA-type batteries. It will be a bit less compact but much easier to sell or give away.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

raven38571
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I’m definitely interested

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I’m in for sure


The best signature ever.

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Definitely interested – Great concept

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We have a plastic thingy with
Solar panel Ln top costs were $16,-
Crank in bottom
Shaped like those old fashion storm lanterns.
The light it produces is not warm but we used it camping and it sits next to the kitchen door
We have cranked it up once but the solar charging has provided light for about a year now when we needed it.
Is it possible to sacrifice the space of 1 cell for charging parts? Solar panel on top, crank at bottom? Maybe USB out port for cellphones.
To have that in a nice ALU housing would be very nice.

I was planning on just using a diffuser with a modded SRK but this is a much cooler project!

But as you go right now I am interested so put me on the list.

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I have a few lanterns but none run off of 18650s . I could use one of these!

netprince
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Interested

M78
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Definitely interested.

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