Features:Skid-proof DesignReflector: Convex LensInternal wiring applies the high efficient booster circuit， working voltage is wide and can utilize thebatteries in the largest extent.Waterproofing design， "O" ring sealed.Battery type: 1 x 18650 3.7v Battery or 3 AAA batteries (Not Include)Super Bright， 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 Q5Material: Aluminum alloyMax output Lumen: 3000 Lumens3-mode adjustable Brightness，High/Low/StrobePackage Included:1 x Flashlight1 x 18650 Battery Plastic Tube (Not included battery)