Features: LED technology Features both tail cap and 6" Remote Pressure Switches Momentary or constant-on function Standard and offset Picatinny rail mounts Sharp focused beam for distance illumination Aircraft-grade 6061-T6 aluminum housing w/Type III hard-anodized finish Beam distance rated at 220 meters IP-X7 Waterproof Impact & chemical resistant Serialized for personal identification (1) CR123 battery (included) Limited Lifetime Warranty Specifications: Multi-Function: Yes Flashlight Lumens: 450 Beam Distance: 220 Candela: 12,100 Drop Rating: 2 m Dust/Water Rating: IP-X7 Waterproof Flashlight Runtime: 2 hrs Switch Function: Momentary or constant-on Length: 3.7 in (94mm) Weight: 4.2 oz (119g) Diameter: 0.8 in (20mm) Head Diameter: 1.2 in (30mm) Light Source: LED Body Color: Black Quantity of Batteries: 1 Power Source: CR123 Warranty: Limited Lifetime