Durable Construction - Machined from Mil-Spec hard-anodized aerospace aluminum, dual O-ring and gasket seals delivers IPX4 waterproof level which make light rugged, durable and combat ready. Blinding Brightness - A virtually indestructible, recoil-proof LED generates 1200 lumens of blinding white light and continues producing tactical-level light for 3 hours 200 meters beam. Easy to Install - Fixed rail grabber with thumbscrew easily attaches to Picatinny rails (no tools required), can be quickly attached or detached structure in seconds. High-Performance - The optically coated tempered glasses provide better light transmission, total internal reflection (TIR) lens creates versatile beam with plenty of reach and sufficient peripheral illumination for medium-range operations. 2 Types of Switches - It uses either a remote switch with momentary/constant-on operation or a push-button tail switch for different tactical needs. 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. Specifications: Brightness: 1200 Lumens Working Mode: On/Off Weight: 222g/ 7.8oz (with battery) LED Light Source: CREE XPL V6 Power Source: 1xLithium Battery(included) Size: 5.7"x1.3"x1.3" (Flashlight) Charging Time: 3 Hours Include: 1 x Feyachi WL18 Weapon Flashlight 1 x Tap Switch 2 x Batteries 1 x Battery Charger