Terralux TLF-COLO-500 Colorado 500 Flashlight, Grey 580 lumen output High impact polymer body; water resistant 4 Lighting Modes; max (580 lumens), high (250 lumens), med (60 lumens), low (3 lumens) Fully depressed tailcap switch to turn on; quickly press to change modes Requires 4 AA batteries (not included); CREE XM-L LED bulb