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

I am afraid we will not get any detailed, official clarification on "what is what" anytime soon. :(

I have now seen four different driver revisions...

First revision 4.3 Updated revision 5.0 with type C-C compatibility fix Unknown new (intermediate?) revision 2021 with PD/reverse charging and Andúril 2 New (official?) revision 2021 with PD/reverse charging, revised flashing pad layout and Andúril 2

Wow… I know i have been a bit out of the loop for the last year due to my big move, life alterations, getting ill, and trying to get back on my feet, meaning i was not as directly involved, or aware of driver changes. I have been however watching the LT1 te4am chat group, but there has been no updates from Barry with Sofirn or other team members during my downtimes… I wish Barry would have consulted with the team, ( all of us active members on the design/development team for the LT1: (Myself, ToyKeeper, SIGShooter, Barry0892, Phlogiston, Lexel, sbslider, BlueSwordM, bmengineer, Lux-Perpetua and amishbill) were the team that contributed to the LT1.

Interesting test… That shows the new version (Powerbank enabled) should be able to power a second LT1 as a “tag-light” meaning one LT1 can power two separate LT1 head units from one body set of cells, (but with a reduced run times, as its likely the same as running two separate LT1 lanterns with only two cells in each lantern, ( as the LT1 can run with even a single 18650, or two, three or for cells by design intentions.

Sorry I haven’t the time to read through the thread but was hoping to recieve simple suggestions on which and where to purchase this lantern? From the last few threads it seems like there have been several modifications and on Amazon there are two variations (under the link https://www.amazon.com/Rechargeable-portable-Inserted-batteries-Batteries/dp/B097MN6P1B/ref=sr_1_1?dchild=1&keywords=sofirn%2BBLF%2BLT1%2Blantern&qid=1626317714&sr=8-1&th=1)

New LT1 Kits: $84.99

Old LT1 Kits: $76.99

Would anyone kindly suggest which model and the differences I should use?

If you find out……… please let the rest of us know :person_facepalming: ………. and welcome to BLF

I would be tempted to buy the cheapest one available. Its likely to be the old version ie the original BLF LT1 in black.

A excellent straight forward camping/emergency lantern as originally designed. USB-A to C cable & the option of enabling the other chips.
But who knows ???
I’m planning on getting a second LT1 but will wait for a few months & see if Sofirn sort out their variations.

Green indicator will be changed to orange. But they’ll probably sell current stock first. Not sure if they’re building on top of Sofirn 1.0 or BLF-LT1-A2.

FYI there’s also an Orange LT1 with rev 5.8. That makes three new variations since rev 5.0

Yes Yes Yes! About a week ago I was starring at my LT1 I have mounted on a tall tripod stand & thought I’d rather a bigger lantern than a smaller one. Something with 4x 21700 or 26800 heaps of mAh’s….heaps of lumens if desired like 1-2000. Something that wasn’t focused on fitting into a hikers backpack instead focused on a camper who has a truck, tents and sets up a campsite. A light you could use for 4+nights, can be quickly topped up with the latest fast charging, maybe have some powerbank function. Just a BIG fk-OFF version of the LT1. I’d buy a couple and pay good money for them. It would sell too as most lanterns have a minimalist approach i.e they are tiny, have tiny cells and to maximize run times have tiny Betty & Jim LEDS that don’t sustain much light output. I must say the LT1 is definitely better than most of them, I’d just like bigger.

Is it normally Orange when the BLF LT1 Sofirn 1.0 is turned off or turned on? Does it only turn green when it has finished charging?

Yeah the light is normally orange when it’s off/standby. It only turns green when it is finished charging. Seems to be the same behavior as the old LT1 I was featuring in my other posts in this thread. From what I understand only the other version has the green standby light, which seem to have all been orange-body models? Not sure if there’s a correlation, or if I’m mistaken with that. Nevermind!

This is the link I ordered it from, with “Black-NewVersion-with-Battery” selected:
https://sofirnlight.com/products/new-version-blf-lt1-lantern-with-anduril-20-power-bank-function

Sorry to disappoint, but unfortunately there is no such correlation (it would be too easy :smiley: ). For instance, I also have a black unit, ordered directly from Sofirn’s webshop using the same URL you did. And it’s based around the BLF-LT1-A2 driver. Same for the guy on reddit. He also has a black LT1 w the BLF-LT1-A2 driver and green standby light. Actually, at the time when he and I ordered ours, the orange color option was not even available yet.

Dang. Should have looked more carefully. Thanks for letting me know!

Maybe SIGShooter has some background info (?). I mean it was not exactly a secret that a reverse charging variant was coming. And it was SIGShooter who published that info in the LT1 topic more than a year ago.

That is planned, for the LT2. four 21700 capability, with power bank, 3rd red LED channel.

My bets are this will be more vaporware, but I’ll keep my fingers crossed. Has anyone from Sofirn discussed when these might go into production?

Also, did they include you in the prototype phase, or are they going to skip that and move ahead by themselves (as they have done with subsequent LT1 changes)?

:+1: ………… :person_facepalming: :beer: :beer: ……… 2024+ ??

Barry of Sofirn has been in contact with me much more lately for future designs, as everyone know i was in a bit of a hiatus during my move and illness the past year. Lux-Perpetua has introduced a design based from my original LT1-Mini & refined in the design group chat, and things are looking positive for the LT1-Mini, LT1-Compact, and LT2/21700 versions.

Thanks for the update. I hope you are feeling much better these days and life has returned (more or less) to normal.

It looks like the 8 x 18650 LT1 adapter never got off the ground. Its too bad that such a cost effective, simple and useful add-on made it through the prototype stage but never went into production. Id have purchased several. I always wondered what the LT1 and possible upcoming variants and accessories might have been if they had been produced by Astrolux or Convoy. Ah well… Im still very pleased with my collection of LT1’s and they see a great deal of use. Thanks again to all who were involved. :+1:

A more simple user interface like one button for mode change, one for brightness change and one on/off-switch would be awesome.

In Anduril 2, there is a Simple Mode feature… Still by using 1 button as opposed to your 3 button request, but more in line with the usual kind of UI found in most lights.