See blue laser build link in sig. Laser has since been completed. Pretty small build - around 650mW.
14500 battery, copper heatsink on Micro Boost driver and A140 diode, Polished focus ring with aixiz 445nm lens.
It's only set to 760mA because 14500 li-ion btteries are somewhat limited in safe output.
A 14500 high discharge safe-chemistry battery would be able to easily drive >1000mW but the battery life would be short.
If you remove the copper pill, you can adjust the pot with a screwdriver.
It's still basically brand new in great shape. I've only run two batteries worth of time through it.
Let me know if you're interested