5 5/8" overall. Black HAIII military grade hard-anodized finish aero-grade aluminum alloy housing. Features five individual light sources: two main LEDs plus bi-lateral secondary red, green and blue LEDS. Four selectable modes of output: red, green, blue and white. Primary white light: CREE XP-G2(R5) LED, up to 440 lumens, beam distance - up to 190m, runtime - up to 400 hours, candlepower - up to 9000cd. Primary blue light: up to 35 lumens, beam distance - up to 66m, runtime - up to 45 hours, candlepower - up to 1100cd. Blue light is good for fishing, can reflect the fish's body, locate the body and blood searching. Toughened ultra-clear mineral glass with anti-reflective coating. Double side-switch interface with integrated power indicator light allows for one-handed operation while providing easy access to numerous brightness levels and functions, including a unique multi-colored warning/hazard mode which rapidly alternates between red, green and blue. Instant-start - enter turbo mode directly. Integrated "Precision Digital Optics Technology: provides extreme reflector performance. Push button on/off tailcap switch. Physical reverse polarity protection mechanism. Stainless retaining ring protects the core components from damage. Impact resistant: up to 1.5m. Waterproof: up to 2m (IPX-8). Uses (1) 18650 or (2) CR123 batteries (not included). Includes black nylon belt sheath, stainless clip, tactical ring, nylon lanyard, spare tail cap and spare O-ring. Hang packaged. Purpose-designed for law enforcement, hunting and tactical applications.