Skid-proof DesignOutput bright can come to 7 W (MAX)Reflector: Convex LensInternal wiring applies the high efficient booster circuit， working voltage is wide and can utilize the batteries in the largest extent.Waterproofing design， "O" ring sealed.Battery type: 1 x 18650 3.7v Battery or 3 AAA batteries (Batteries Not Include)SuperBright， blinding EffectAdjustable focus range for different usageSwitch :Tail-cap press ON/OFFClip for convenience carrySuitable for Self Safety， hunting， cycling， climbing， camping and outdoor activity etc.External Dimension : 35mm(Head)x25mm (Body)x 135mm(Length) Specifications: Color: BlackModel of LED: CREE XM-L T6Material: Aluminum alloyMax output Lumen: 2000 LumensPower: 7W3-mode adjustable Brightness，High/Low/StrobeZoom In/Out to adjust its Focus: x1， x250， x500， x1000， x2000 Package Include: 1 x Flashligt( Battery and charger not including )