Fenix TK41 Flashlight Powerful, compact flashlight with Cree XM-L LED bulb 4 brightness levels and 2 strobes; up to 800 lumens output Durable aircraft-grade aluminum body coated with hard-anodized finish Toughened ultra-clear glass lens; dual switch system on the front Requires 8 AA batteries; measures 8.4 inches long; weighs 0.7 pounds