Im gonna ask this question in 3 reviews on H3, mine exluding :D!
So, the question is - does the thermal stepdown works on yours?
Seems like it doesnt on mine, it always stays on turbo even when the light becomes scorching hot!
Turning it down to high doesnt help either, the light still stays hot, hot, hot!!!
Wow , I have used the H3 quite a bit ( with headband ) , makes for an excellent work light .
But I use the lower modes ( less reflected light ) , I dont think I have run mine on high long enough for it to get hot at least not in the headband where it gets 90% of its use ...
And turbo ( or as high as it will go ) is just a little too bright , and I find I have little use for it ..
Hmmmm , I'll see if I can get it to do the thermal control thing , but even on turbo , I never noticed it getting more than lukewarm .
I guess you must be running it for extended periods ...
But regardless it should step down and step back up only when the temperature is acceptable, on mine it doesnt do that, it stays super hot when on turbo and really hot when ran only in high mode, it takes a little while for it to warm up on high, but it gets there.
The moonlight just 1lm？what the size of this light.how long you bought it？
you know its Australia when you see the hills hoist lol
I ran mine for 10 minutes , and it got very warm in the head , but it was not sizzling hot . I was quite able to pick it up and hold it .
+ After 10 minutes on turbo , my guess is the battery voltage would be such that output would be dropping ...
It never dropped into safety mode
Room temp is 23 Deg C
I just tested mine:
Turbo mode, ceiling bounce, no cooling of any kind:
0:00 - 81 lux, ambient temp
2:00 - 79
3:00 - 79 uncorfortable to hold, starts dropping slowly
4:00 - 51
5:00 - 65
6:00 - 78 back to full brightness
7:00 - 45
8:00 - 38 lowest low recorded, then raises
9:00 - 78 stays here for a couple second then drops again
After the whole body gets to an uniform temperature it ramps from 38<->78 constantly. I guess it works?
Conclusion: it will drop to approximately 50% output and then raise to highest again. This is a “dumb” regulation, a smart regulation would find the correct brightness and stay there, not jumping back and forth like this which is very noticeable if you’re in outdoors and 1,000 lumens becomes 400 in a short while.