*BLF LT1 Lantern Project) (updated Nov,17,2020)

Herb_Tarlek · September 21, 2018, 12:48am

##flashlight on Freenode.

deus1ex · September 21, 2018, 6:45am

I am interested 1x

red72vw · September 21, 2018, 7:31am

please add me to the list for one. Thanks

sbslider · September 21, 2018, 12:31pm

copy of latest additions to the list:

1013 jinjin19
1014 Flitsmal
1015 bd52
1016 bd52
1017 bd52
1018 finnegans
1018 finnegans
1019 Schkü
1020 deus1ex
1021 red72vw

DBSAR, if you want you could likely just copy and paste this to the last list update I provided and update the OP at your convenience, or I can send you a full update some time in the future. I plan to periodically show recent additions in this sort of format from now on. I will still try to welcome new members who post here in the interest thread first (I am sure I have missed some, sorry bout that and a belated welcome to BLF to those I missed, the second round is on me also )

The latest list can be found in the OP always (thanks DBSAR) and is posted here for conveniece also:

interest list sorted by entry number

interest list sorted by user names

Lothar · September 21, 2018, 1:53pm

I don’t see my name on the list (*BLF LT1 Lantern Project) (updated Nov,17,2020) - #2763 by Lothar)

sbslider · September 21, 2018, 2:36pm

Thanks for pointing that out. Surprised I don’t get fired from this job. . . :person_facepalming:

I added you for 4 Lothar, split the difference. I also added Gregor who I missed in the post just after yours.
I went through the last couple pages and think I got everyone, but it doesn’t hurt for you to check like Lothar did. :+1:

1021 red72vw
1022 Lothar
1023 Lothar
1024 Lothar
1025 Lothar
1026 gregor

interest list sorted by entry number

interest list sorted by user names

toxiccoccyx · September 21, 2018, 2:50pm

I’ve resisted long enough. Put me in for 1.

beastlykings · September 21, 2018, 3:17pm

Count me in for interest in 1 please.

WES-7 · September 21, 2018, 3:43pm

Please add me to the list for 1. Thanks.

sbslider · September 21, 2018, 4:25pm

you have one on the list at 599, and I have added you for a second as well at number 1027.

1027 toxiccoccyx
1028 beastlykings
1029 WES-7

DBSAR · September 21, 2018, 5:02pm

sbslider:

copy of latest additions to the list:

1013 jinjin19
1014 Flitsmal
1015 bd52
1016 bd52
1017 bd52
1018 finnegans
1018 finnegans
1019 Schkü
1020 deus1ex
1021 red72vw

DBSAR, if you want you could likely just copy and paste this to the last list update I provided and update the OP at your convenience, or I can send you a full update some time in the future. I plan to periodically show recent additions in this sort of format from now on. I will still try to welcome new members who post here in the interest thread first (I am sure I have missed some, sorry bout that and a belated welcome to BLF to those I missed, the second round is on me also )

The latest list can be found in the OP always (thanks DBSAR) and is posted here for conveniece also:

interest list sorted by entry number

interest list sorted by user names

Done deal much easier to add the new interest list names in small lots like that. ( Updated the OP to #1029

sbslider · September 21, 2018, 7:14pm

I will keep doing it that way then, as it is also much easier for me.

DBSAR · September 21, 2018, 7:14pm

sounds good.

DBSAR · September 22, 2018, 5:44am

Here below shows the shortened version of the lantern, based from Lexel’s modified drawing, with added knurling to the mid section. ( the battery tube can be the same exact one used for the Sofirn Q8 if that saves cost/price per unit, and eliminate the four flat spots ( like the Sofirn Q8) as the flat sections is not needed.

Satan · September 22, 2018, 6:00am

The flats section look good to me it can reduce some weight and also have the logo on it if the mid section is knurling.

lohtse · September 22, 2018, 6:08am

jigsaw:

alternety:

OK. My views on everything.

There should be a substantial stainless steel connection for a three leg stand. The hole for the tripod must have a complete water barrier internally. With no possibility of being penetrated/destroyed by a long attachment screw. Is making a tripod for the lantern being considered? The Q8 version of the bottom cap may not be strong enough for holding a small tripod in a center hole. The lamp will be tipped over, and worse. This is a potential weak point. If making a tripod, be sure you look at the leg spread required to minimize tipping the vertical mass, and uneven surfaces.

Flats bad; knurled good. No apparent reason to have flats except possibly around the control button.

Sloped plastic surround; maybe not so good. It could be done with a standard piece of plastic tubing; lower cost. Perhaps more durable/scratch resistant than the current selection. Top heat sink could possibly get smaller diameter but thicker heat sink/more fins if needed. The overall heat management needs to consider a range of environmental conditions. Is it zero F or 100 F? Both could be possible. Straight tubing would make it simpler to apply a removable shield to mask some areas of light. Much easier to find a replacement in case of damage.

Battery carriers have some significant merit. No carriers and extension tubes are one of the few things I did not like in my Q8s. First, the newer battery formats need to be accommodated. I have seen little preparation for new formats. Preferably using inserts in the carriers for the 18650s. In a year or two, we will be saying “Why on earth did we not consider the new battery formats that are replacing 18650s”. The carriers with extension tubes could double or triple the run time of the lamp even with just 18650s. I bought a TK75 for this feature. At bedside it has a 1 segment tube. In the closet is a tube for 3 carriers with charged batteries sitting with the tube. The sizing for the tripod would need to be designed to control tipping with a new center of gravity.

I do not believe it is reasonable to include external charging, charging phones, or jump starting your SUV. Anything not directly connected to it being a lamp. There should be a thoroughly sealed control button penetrating the shell; no additional holes in the shell using “stick in” sealing (none when doing external functions in the rain). I have multiple devices (phones, radios, etc.) where these little rubber plugs have shown their inability to work over time, or still be attached after some use (and just normal infrequent use). I think most people will use these lights in two ways. Emergency lighting; camping. I do not see many people wandering around holding up a lantern rather than a flashlight.

Using/charging the batteries in the lamp should not be a feature. There are many many inexpensive and compact external battery packs to charge your phones. Not to mention your vehicle. Why suck run time from the lamp. IT IS A LAMP. Not a source of getting power to watch a program you just can’t miss.

If we absolutely need to have these, I would want the type C connectors. It is where we are going. Using another version of USB or other protocols is just stupid. For a few dollars you can get a cable for the type C. There is no reasonable way you can fix the lantern if it is not type C. It boils down to type C now with an adapter (if needed), or adapters for all your nice new stuff.

Efficiency of the lamp should be the number one electronic priority. Whatever electronics are used; this should be the absolute guiding objective. IT IS A LAMP.

I do not view radiation frequency variations as a useful addition. I can live with it, if it does not reduce run time or increase cost. Otherwise, over a rather long time, I have been exposed to all of the visible spectrum (think walking outside on a sunny day). Some bands in the visible spectrum I like more than others. But I JUST DON’T CARE IN A PORTABLE LAMP. If there is no cost or loss of lighting efficiency for variable spectrum; OK. Otherwise no; IT IS A LAMP.

Probably best if you don’t buy this lantern.

eeeeeeeeeeeeeeeeerm nope…. This is not the lantern you are looking for! (say is with a hint of jedi)

DBSAR · September 22, 2018, 6:09am

if it don’t add cost per unit, then we can still have them like the original Q8 has. The logo will probably be etched around the head or just below the mid section knurling.

DBSAR · September 22, 2018, 7:21pm

Current design Specifications for the BLF LT1 Lantern will be close to these below:

-Specifications:

- uses up to four button-top 18650 LiIon cells (in parallel configuration) Driver based from Lexel, Firmware from Toykeeper (LT1-Anduril)

- 150mm tall x 57mm wide

- Lighted electronic switch, (same as Q8 but with amber or yellow LED.

- USB charging, (either USB-micro, preferably newer USB-C input

- USB Power-bank charging out port, (up to 2.1 minimum continuous Amps for smartphones or tablet charging)

- down-firing LED design, with four Samsung LH351D 2700K high-CRI LEDs,
and four Samsung LH351D 5000K High CRI LEDs.

- Tint range from 2700 up to 5000K with Tint ramping feature.

- between 700 to 900 lumens on maximum mode.

- Ability to run lantern on the lower modes while charging from a minimum of 10 watt solar panel) (able to sustain a minimum of 1 amp charging rate.

- up to 1.75 amps at the four cells combined on maximum draw, on maximum mode.

- minimum water resistant of a IP67 / IPX7 rating

- electronic & mechanical lock out. (Mechanical by loosening battery tube

- 1/4”–20 tripod mount on bottom for use as a raised lantern on a tripod.

- 1/4”–20 tripod mount on back of lantern, same as Q8 (for accessory
reflector)

- steel loops on head for addition of para cord Lanyard( or one included with the lantern)

20% lens frosting (or frosted internal sleeve) for smoother light, but not reduce the output no lower than 5% of bare LEDs.

- Up-coming available accessory kit will include:
> white durable plastic directional reflector, (covers 40% of one side of the lens increasing light in one direction.)
>plastic snap on wide base cap for more stability (similar to the ones used for the propane gas Coleman lanterns for stability)
> long 12 foot USB charge cable (for remote Solar charging)
> padded woven storage sleeve storage case.
> upper “wide-hat” plastic white hood brim/reflector for increasing light
downward when hanging above outdoors.

lohtse · September 22, 2018, 6:52am

DBSAR:

Current design Specifications for the BLF LT1 Lantern will be close to these below:

-Specifications:

- uses up to four button-top 18650 LiIon cells (in parallel configuration) Driver based from Lexel, Firmware from Toykeeper (LT1-Anduril)

- 150mm tall x 57mm wide

- Lighted electronic switch, (same as Q8 but with amber or yellow LED.

- USB charging, (either USB-micro, preferably newer USB-C input

- USB Power-bank charging out port, (up to 2.1 minimum continuous Amps for smartphones or tablet charging)

- down-firing LED design, with four Samsung LH351D 2700K high-CRI LEDs,
and four Samsung LH351D 5000K High CRI LEDs.

- between 700 to 900 lumens on maximum mode.

- Ability to run lantern on the lower modes while charging from a minimum of 10 watt solar panel) (able to sustain a minimum of 1 amp charging rate.

- up to 1.75 amps at the four cells combined on maximum draw, on maximum mode.

- minimum water resistant of a IP67 / IPX7 rating

- electronic & mechanical lock out. (Mechanical by loosening battery tube

- 1/4”–20 tripod mount on bottom for use as a raised lantern on a tripod.

- 1/4”–20 tripod mount on back of lantern, same as Q8 (for accessory
reflector)

- steel loops on head for addition of para cord Lanyard( or one included with the lantern)

20% lens frosting (or frosted internal sleeve) for smoother light, but not reduce the output no lower than 5% of bare LEDs.

- Up-coming available accessory kit will include:
> white durable plastic directional reflector, (covers 40% of one side of the lens increasing light in one direction.)
>plastic snap on wide base cap for more stability (similar to the ones used for the propane gas Coleman lanterns for stability)
> long 12 foot USB charge cable (for remote Solar charging)
> padded woven storage sleeve storage.
> upper “wide-hat” plastic white hood brim/reflector for increasing light
downward when hanging above outdoors.

FRIGGIN AWESOME

AND YES PLEASE TO ACCESSORIES!! HECK WE ALL NEED ACCESSORIES!!!

DBSAR · September 22, 2018, 6:55am

I am already testing & refining newly designed accessories with the V2 Prototype now, that will be a good addition for the production model.