LED Lenser L7 LED Flashlight, 100 Lumens, 5.24 in, 3 AAAs, can withstand extreme temperatures and the harsh elements of the outdoors, but it also ultra-bright and compact. The LED Lenser L7 flashlight features the Advanced Focus System and its shock-resistant polycarbonate housing means it`s not only lightweight, but also shatter-proof and tempature-resistant. The Advanced Focus System (AFS) is the patented combination of a reflector AND lens to create a light system that provides both a focused beam for long-distance and a homogenous spill-beam for up-close reading. ANSI Specs are based on the FL1 Standard:100 lumens of light;225m light range;6 hours of battery life.Tech Specs are:LED: High End Power LED; Length: 5.24in;Weight 5.01oz;Battery: 3 AAA; Energy Tank: 5.4 Wh.