luxeon LED’s are really nice. a buddy of mine used 4 of the k2’s with lenses in a 18v drill battery flashlight with their little controller. lasts 1.5hrs and is crazy bright. 
Brian
luxeon LED’s are really nice. a buddy of mine used 4 of the k2’s with lenses in a 18v drill battery flashlight with their little controller. lasts 1.5hrs and is crazy bright.
Brian