SureFire 6-Volt Led3 Level Output Flashlight Virtually indestructible LED emitter regulated to maximize output and runtime Precision micro-textured reflector creates smooth, optimized beam-Coated tempered window resist impact, maximises light Maximum Output 150 Lumens High-strength aerospace aluminum body, anodized Mil-Spec hard-anodized (HA) for durability Tailcap click switchpress for momentary-on, press further to click constant-on