TrustFire 1800 Lumens Rail Mount Tactical LED Flash Light Black. Output 350 Meters of Throw 110 Minutes Battery Operating Time Tail Tactical Switch and Remote Pressure Switch Function One Piece Integrated Quick Release Mounting Base for Picatinny/Weaver Rails Made of Aviation Aluminum AL6061-T6 The surface is treated with military-standard level-three hard anodized anti-wear treatment Package Contents: TrustFire R8 1800 Lumens Rail Mount Tactical LED Flash Light Pressure Switch TrustFire R8: R8 1800 Lumens Rail Mount Tactical LED Flash Light Black