LouieLouie
Contributor
I've modded a couple of Xenon Q40's to take $10 240-lumen LED modules (Regular eLEDs are 67 lumen AFAIK) from dealextreme.com. 20 minutes of grinding work per light. 480 lumen attached to your mask is sort of fun but will leave your buddy blind. Batteries last for approx. 2 hours.