With 400 lumens of vibrant white light, our WML Series is constant, momentary and strobe. Extensively tested for emitters provide up to 1. 5 hours of runtime. MIL-STD-810G certified, this 3-ounce weapon light?s concentrated, high-intensity beam fills your field of view for close to mid-range target identification. The strobe function is easily disabled and the easy-to-operate lockout system ensures the light isn?t turned on until you?re ready. Inforce all-inclusive rail clamping design integrates seamlessly with your weapon, providing simple, fast mounting with no need for additional tools. Features: - 1/4 turn of head engages lockout mode for travel, transport & storage- Seamlessly transition between full function and momentary mode- Safety bar minimizes negligent discharge- Integrated clamp interfaces with 1913 rails. No tools required- Non-slip switch controls constant, momentary and strobe functions. Specifications: - Function: Constant/Momentary/Strobe- Modes: White- Output: 400 Lumens- Runtime: High Efficiency Emitter Provides up to 1 1/2 Hours- Mount: Integrated MIL-STD-1913/NAR Rail. (No Tools Required)- Activation: Ergonomic Contoured Design for Easy On/Off- Lockout System: Safety Lever/ Head Rotation- Construction: Reinforced Polymer Body Offers High Impact Resistance and Durability. Patented heat dissipating vents for improved LED thermal management- Waterproof: Up to 66'- Batteries: 1 Lithium 123A (Included)- Dimensions: 4. 10" Length x 1" Bezel Diameter- Weight: 3 oz. with Battery- Color: Flat Dark Earth.