Only 6 brightness levels?
is the strobe or SOS needed to be added?
It can be added, but separated from main modes , accessible by 3 or 4 clicks from off. Its a long story to write proper headlamp UI.;)) Some example. That UI is polished and waiting for attiny1616 21mm driver ;))
40ma for medium? That’s seems way too low. But I’m all for more low side modes if it makes smooth ramping more linear, visually. In a perfect world, if I’m wishing for things, I’d still want high to be high tho. >3a on a 3v with an 18650. I’d go higher if heat wasn’t an issue. But for turbo go all out.
Do people want strobe on headlamps? Seems odd but idk. Only special feature I like on a headlamp (besides moonlight, smooth ramping, and turbo) is battery check. The way the convoy headlamps do battery check now is excellent. Best battery check out there on a non-anduril headlamp. In a perfect world I’d make it 3 clicks instead of 5 tho.
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I was drunk or something. Indeed forgot to add a zero 
For 3v led , linear driver input voltage: moon(as low as possible and usable. I use 2 moon modes for smooth transaction to low) - low20ma - 50ma - 140ma - 400ma - high1A. to 1,…A (depends on host thermal mass) and turbo-max for short time. And off course, for every driver schematics ir should be fine tuned.
And i hate seamless smooth dimming.
Smooth ramping is the only thing that separates us from the animals! Lmao
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Thats why we need damn Attiny IC to flash FW we want ;))