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

I think will have to have three now!!!(was two) so add another please…

thank you

Ditto this, my EDC for the last 1.5 years has been a mixed tint triple with 3000k and 5700k 90CRI LED’s and the only LED I have used yet that is nicer is the 219B 9080 but it only does about half the lumens, so I stick with what I have.

Interested in 1

add me for 2 more for a total of 3. Thanks

A few days ago I said in post 1704 that I want a second one, but I just checked the list and could find my name only once (703). Could you please check that?

Im in !!!

Alright alright, put me down for 2 more (total 4) please.

Do we have a rough price estimate yet, and approx duration to manufacture? Or is it still too early to tell

Ok, I have been out of touch a few days and am catching up.

dekozn, you are currently number 363 on the interest list, are you looking for a second lantern, or just lobbying for 2700K emitters?

lantern interest list number 879 reserved for atbglenn

I did not double check the OP vinte77, but I see you as having number 46 and 214 already. I added two more anyway at numbers

Added your third lohtse at 882 on the interest list.

sleasys14 added at number 883 on the interest list

qandeel added two more at numbers 884 and 885 on interest list

I show you with two lights, number 714 and 853 on the interest list. The OP has not been updated very recently, but you can see the online version of the interest lists at the links below.
interest list sorted by entry number

interest list sorted by user names

Indeed puglife2, you are number 886 on the interest list

Done severide, two additional lanterns are 887 and 888 on the interest list.

Ok, thanks. Seems like I missed a that because I was expecting them to be one behind the other on the list because many others are, my mistake.

We are using the Q8’s body,the same driver with some changes and new firmware, the LEDs are a little bit cheaper but we added some new features, so I would expect the price to be the same or a bit higher than the price of the Q8. My rough estimate would be around 50$ (no guarantee).
Also I wouldn’t expect to see the final lantern soon, because after we finshed our design we first need to plan the production with the manufacturer, ship some prototypes from China, test them, make some changes, ship the new prototype and so on. So you can maybe buy the lantern for the camping season next year.

[quote=sbslider]
Ok, I have been out of touch a few days and am catching up.

dekozn, you are currently number 363 on the interest list, are you looking for a second lantern, or just lobbying for 2700K emitters
[/quote ]

For now I just want one lantern

Please add me to the list for one!

Respectfully

Seems tha an USB Type-C plug only charges $0.57 and is already the standard of the future.
https://aliexpress.com/item/1x-16P-16-Pin-USB-3-1-Female-socket-Connector-for-repair-mobile-camera-MP3-MP4/32769193616.html

Apple will use USB-C in future iPhones and future smartphone chargers in the EU are planned to be USB-C.
http://www.digitaleurope.org/DesktopModules/Bring2mind/DMX/Download.aspx?Command=Core_Download&EntryId=2630&language=en-US&PortalId=0&TabId=353

Would be an advantage if the charging cable can be plugged in into the lantern without looking for the orientation of the cable. DualSide microUSB cables are still not that common and magnetic USB adapter cables are still above 10€.
An alternative could be at least to illuminate the USB Port :slight_smile:

If the additional cost for USB c is that low I would also prefer the use of USB c, but I am still not really happy with the planned low 1A charging current. Yes, it’s enough for the intended purpose of slow solar charging over the day, but I’m sure that many (especially non flashaholic) users would be happy if they don’t need to take out the batteries for reasonable charging times, so how much would it cost to implement power delivery or at least increase the current (the Olight X7r can take up to 4A)? Or would an classic DC plug be an option?
And how do you want to implement the powerbank funktion? Using the USB c with a dongle or installing an additional USB A port?

Thank you, angerdan, that was useful information for the USB connection poll thread:

Done, you are number 889 on the interest list.

Wow, that 3000k looks NICE for a lantern. I prefer a nice warm tint for lanterns and that looks amazing. I LOVE the progress being made and can’t wait to order a bunch up. THANK YOU!

good points on the USB-C. I do like the ambidextrous design of the interface being able to plug in either direction.

its not really limited to 1 amp, we can probably have the charge current up to 1.5A maybe at the most, to be practical and allow the lantern to accept charging from more various smaller & lower powered charging devices, (the tests i did is with a TP4056 charger circuit and i only have a 1A version in the V1, but i did a dual TP4056 test last fall and found most all smaller USB power devices could not sustain enough voltage to run them) My thoughts and tests from experience i found that trying to pull 2+ amps from most small solar panels less than 25 watts, from most generic cig-socket adapters, Even most portable power banks i have tested and had can not sustain 2 amps very well without voltage drop or overheating. i seen the voltage drop to much and damage chargers/adapters from over-heating or not charge the cells at all with the low voltage. (as many charging circuits will cut off charging if the voltage drops below 4.5 volts. Only the massive brick-sized Interstate booster/powerbank i have seems to be the only one i have that can sustain a 2 amp USB load and keep the voltage above 4.8 volts. The built in USB charger ports in my RV can sustain 1.5 amps but not much more.
Most people will likely be charging the lantern from Car USB adapters, panels, RV USB ports, small wall warts, etc. during the day when the lantern is not used anyways, and no real need to rush charge it in a hour or two. That is the problem when trying to pull to much amps from weaker USB power sources, is the 5.0 volt standard output drops substantially thus causing the charging circuit to either shut off, or go into a “switching off/on” cycle because of the voltage fall & ending up with not charging the cells at all & overloading the USB power source. 1 amp to 1.5 amps for this needs to be the upper limit really to make it more versatile and able to charge from a more wide range of USB power sources, because that is it a lantern, its likely to be used more in locations where grid-power is not available. Its better to sacrifice some charging time and have it more compatible with a wider range of USB power sources. Its better to have the lantern more versatile for charging from lower USB power sources than it is to have a fast-charge rate. For anyone to want a fast charge rate, its better to just have a second set of cells or use a external 4-bay charger when at home or on-grid power. 1-amp charging it better suited for this application to work with most power sources.

That’s weird and not how a power supply should work.

A USB power supply can maintain the 5 volt while supplying the full current. And it can’t deliver more than the rated current so you can’t overload a power supply.
There is no reason to limit the chargecurrent in the charger itself to a low current. The power supply should and will limit the charging.

A powerful power supply that can output multiple amps and will charge it faster but a smaller power supply, like a solar charger, will charge it with less amps and slower.

That’s the law of demand and supply.