1> CREE XM-L2 LED with a lifetime or up to 50000 hours. Each 6pcs Red/Blue LEDs. 2> Dual-button Side Switch on the head Turbo: 880 Lumens(Automatically lower to High mode after 3 mins continuous use) High: 500 Lumens(1.6hrs.) Mid: 200 Lumens(6hrs.) Low: 60 Lumens(13hrs.) Firefly Mode: 1 Lumens(450hrs.) Red Light: 28 Lumens(11hrs.) Blue Light: 20 Lumens(15hrs.) 3> Constant current circuit constant output. 4> Electronic reverse battery protection 5> Effective range of 230 meters 6> Intensity: 13200cd 7> Users 4xAA batteries 8> Working voltage: 2.8~6V 9> Optimized deep metal reflector maintains great throw distance and spread with an ideal beam pattern 10> Dimension: 108mm(length) x 41mm(head diameter) x 39mm(tail diameter) 11> Aerospace-grade aluminum alloy body 12> Military Specification Type III-hard anodized 13> Waterproof accords with glass lens resists scratches and impacts 14> Ultra-clear tempered glass lens resists scratches and impacts 15> Tail stand capable-can be used as a candle 16> Accessories: Lanyard O-ring Diffuser