There has been some discussions on a 4 cell 21700 version but not much more than that. If it was me I’d get the current version because it could be some time before a decision is even made on producing one.
Thanks for the reply. I decided on one plus 2 of the LT1S and a flashlight. Now I am remembering why I never order… they never have the pretty colors they show.
3*21700 in the center of a Nalgene sized, full-body diffuser with a third red channel in addition to the two tint ramping white channels. Waterproof and floats.
I recently ordered a second LT1 from Sofirn which UPS promptly lost, so they sent me a brand new production light to replace it. This one is a BLF-LT1-A4 driver with the wonky flashing pad configuration, Anduril version 202108290621. The switch backlight is orange by default, and uses a blue/pink combo for charging and power bank, or solid blue while on and plugged in. It gets stuck using either blue or blue/pink while on for a little while after being unplugged.
This particular light arrived with a weird issue where the tint ramping didn’t work properly. It didn’t memorize the setting at all so it always turned on in WW, but every second turn-on it would go through a sequence where it immediately flipped to CW on the first attempt, flipped back to WW and smoothly ramped to CW on the second attempt, then worked properly on following attempts. A factory reset solved that issue and TK told me it was probably caused by incorrect values causing an overflow. Of note, 13H factory reset doesn’t work in this Anduril build, which was rather confusing since it’s included in the UI flowchart.
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”.
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.
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.
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 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!