Blinding Brightness： A virtually indestructible, recoil-proof LED generates 1200 lumens of blinding white light and continues producing tactical-level light for 4 hours 200 meters beam Durable Performance： The Feyachi FL11 flashlight is made of aircraft-grade aluminum alloy with black anodized matte finish, which makes it durable and shockproof. It has waterproof o-rings with the anti-abrasive coating so the flashlight can be used in the rainy day Easy Installation：The offset mount is equipped with QD cam lock, can be quickly attached or detached structure in seconds. The allen wrench and 4 screws to mount your led light conveniently are also included. 2 Types of Switches： Comes with a constant on button switch and a momentary on pressure switch (2 modes) for different tactical need. Tactical, military users will enjoy the dual-switch tail cap which allows for easy single-handed operation. Press the tail button to switch, easy to control. What's Included：1 x Feyachi FL11 Tactical Light (Nickle) ,1 x Offset Mount,1 x Press Switch,1 x Allen Wrench,1 x Instruction.5-year product warranty and 7×24 hrs friendly customer service.