Quick Detail: High quality CREE Q3 LED chip, output 130 Lumens max. Special reflector design, enhance light output in intension and distance, up to 300 meters. Constant current / voltage circuit design protect LED emitter from damage. Aluminum alloy case, avoid damage when drop off on ground. Using "O" ring, perfect performance on wet areas. with hanging ring on flashlight body, convenience to schlep. On/Off button, soft touch swift to different