A dual battery S21A with 2x Vapcell F63 and a 3000K LMP73B, driven by a P4000 buck driver, that should give a runtime of around 3-4 month continuously at the lowest setting.
The 5mA "moonlight mode" it's still bright enough to be blinding if shone directly into the eyes during daytime, which is a testament to the efficiency of the LHP73B. And at 5A turbo it should provide almost 2000lm, which should be good enough for spelunking.
by Due_Tank_6976
1 Comment
Thank god, I was on my way to be stuck in a cave and just realized I’m woefully under equipped