1. Blinding Brightness - A virtually indestructible, recoil-proof LED generates 1200 lumens of blinding white light and continues producing tactical-level light for 2 hours 200 meters beam. 2. Durable Performance - The 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. 3. 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. 4. Mlok OFFSET RING MOUNT - Aircraft grade aluminum construction with matte black anodize finish, lightweight design, 1.60"forward or rearward removable offset mount with 1.12" upward or downward offset, black polymer insert to fit flashlight tube diameter 27mm, 25.4mm and 20mm. Also provides versatile mounting options. 5. Easy to Install - 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.