Extensively tested for performance, durability and reliability, you won?t find a brighter, higher quality, more dependable light on the market today. With 800 lumens of vibrant white light, our WMLx Series is engineered to be lightweight and powerful, and offers three easy-to-use operating modes: constant, momentary and strobe. At just 4 ounces, its concentrated spot and far-reaching, high-intensity beam provide significant light for situational awareness and long-distance 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: 800 Lumens- Runtime: High Efficiency Emitter Provides up to 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: 2 Lithium 123A included, head removes for battery replacement- Dimensions: 5. 34" Length x 1. 125" Bezel Diameter- Weight: 4 oz.- Color: Black.