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

What is the factory reset on Anduril version 202108290621? Or is there none?

It uses the original method:

  • Loosen tailcap (or in this case, the battery tube)
  • Hold the button
  • Tighten tailcap
  • Keep holding button until the strobing turn into a bright flash (about 3-4 seconds), then let go

If the user lets go before the flash, the factory reset is cancelled. It strobes in increasing intensity for about 3 seconds as a warning, sort of the flashlight equivalent of “Are you sure?”. Then it goes to full power to signal that the reset happened, and it quickly fades to off.

The factory reset animation originally came from my lightsaber firmware. It did the same thing, but in that UI, instead of “factory reset”, it was called “self destruct”.

Thanks!

Hi TK,

Sorry to ask here but it seems two prototypes of Q8 pro 1616 version ans SC21 Pro 1616 version were delivered.

Do you have them now? Would you please help confirm the firmware? It seems there are bugs there.

We are going to transfer all Anduril lights into 1616 version but waiting for firmware without issues.

Please help.

Installing the new driver in an older LT1. But when screwing on the battery tube, it goes on full brightness and pressing the switch has no effect. The green switch LEDs toggle between dimmed and full on when pressing the switch. Anyone has any idea what might be causing this?

Update:
Solved. When putting it back together the CW wire ended up being squeezed and the insulation broke causing a short (direct battery connection?). Seems there’s no permanent damage… phew…

Are the switch PCBs interchangeable? The green that comes with the new A2 driver is pretty annoying, so maybe the old switch board (rev 5) can be used instead. Has anyone tried this?

Unrelated, how many different flashing pad layouts has Sofirn come up with by now? I think they’ve earned a trophe from coming up with the most variations.

i ordered a LT1 in early june from here (USA shipping):

https://www.sofirnlight.com/products/sofirn-blf-lt1-anduril-2-rechargeable-lantern-super-long-working-time-with-power-bank-function-ship-from-usa

received A2 revision. fw i believe is 2021 01 25 0621, but i'm bad at counting.

i love the light. no complaints really, but the newer amber standby led color sounds better than mine which is green.

the power bank function seems to work well. my phone even said it was rapidly charging, so i guess LT1 supports PD2? pretty cool.

my dream version of this light would have:

  • tesla 4680 cell :)
  • boost driver (and no worries if it's no longer dual channel if that's the required compromise)

but much more near-term, i think it would be pretty cool to have 4x21700 support somehow.

i'd love to see a 21700 adapter.

here's a mockup of my idea (not drawn to quite to scale):

i colorized the different components for clarity.

the 21700 cells would be bottom-loaded.

i'd totally buy one to upgrade my light.

a question: i received 4x 3000 mAh 18650s with my light. they're sofirn wrapped button tops.

any idea if these cells are actually protected, or are they unprotected button tops? i want to replace these cells with some 3500 mAh button tops (sounds like i can use unprotected), but i'm wondering if i can reuse these 3000 mAh sofirn cells in a device that needs protected cells.

No protection with the Sofirn cells. That light does not need protected cells.

Definitely interested in getting 4x21700 tube…

I can’t see Sofirn making a 21700 tube. They would have to do a lot of tooling and production for unknown sales - totally different business model to having a list of people waiting to buy a 21700 LT2 or whatever you wanted to call it.

Its been a few years but didn’t dbsar originally talk about a bigger version over time?

LT1 is big/heavy/enough mAh for me, waiting for the LT1m for more portable offering (to arrive - the orders in and shipped!)

totally different business model... is it really though?

what if they just made the tube instead of what you call a LT2. can sell the same top with either 18650 or 21700 bottom. and sell the 21700 bottom separately as an upgrade for existing LT1 users. why does it need to be a whole new separate product? what else needs to be changed about it to bring a 21700 version to market? that said, i'd love a boost driver version.

I use them in my bedroom and the lowest is still too bright.

Anyway to make it less bright? I know you can do the pencil mode to make it brighter

I don’t think I explained what I meant clearly sorry - making a tube only has costs for them. The profit margin is much larger on a light than a tube accessory. Demand for the 21700 tube is currently known to be 1 in this thread (of course more will buy! But you see the point I am making) but sofirn have no ideal of market design for such a thing.

With a group buy like this, and poor sigshooter keeping a list, soft in know 500,1000 whatever people are interested and can estimate at least 50% or whatever will buy.

Not saying it’s not a good idea - just saying good luck getting Barry to make it as that’s not how economics of these lights and factory’s works in my view.

Why not start an interest poll thread and PM Barry at sofirn for opinion!

It’s in the thread somewhere this came up before.

Factory default is 3 or 5 of the drivers I forget which, but if you de-solder the pads I think from memory you can lower the output.

Do you have the original model or that later ones? I have an original group but that definitely goes lower than a later Sofrin PCB version with the usb power bank function

isn’t there a function to program the brightness in Anduril?

Anduril can control the brightness, that’s its whole purpose. But this is about a hardware modification to extend the range, either up or down.

so the lowest brightness is already at the floor in software then? thanks

I think it is… if you are in advanced mode and using smooth ramping… and have not modified any of the ramping settings. Using the new A2 version anyway. The one that I have.