Yea, I too tend to just skim through posts. If you didn't read the post I was responding to, it looked like I was saing it wouldn't burn.
Let me be clear: With the shipped 2 batteries this thing will BURN. Don't even need to focus it to burn most stuff. It will burn your skin very quickly two...
The not burning anything is with a single 18650 4.2-3.7 volts instead of the two CR123s 2x3 volts or two 16340s 2X4.2 to 3.7 volts).
Since these diodes like to drop about 5 Volts avg. at full power, a single 18650 with a buck stile regulator is just enough to get them to Lase.
Know you were...
BTW: if you focus this thing and either have a steady hand or get close enough, it works great for lighting fireworks.
I impressed the people on my block by keeping myself between them and the beem, wearing my laser glasses I already had, and lighting some fireworks I had left over with this...
I had a 18650 from my overpriced survival laser and it works as stated. Won't really burn anything, but you can still see the beam in the air. I guess it is still pretty dangerous at this power, but the reflection off most surfaces don't seem so dangerously bright.
The build quality on this...