11 3/4" overall. Aggressive knurled designed aluminum barrel with 1 1/2" diameter. White LED. Up to 625 lumens. Advanced focus system. Beam distance: up to 406m. Peak beam intensity: up to 41200cd. Runtime: High - up to 16h, Low - up to 77h and Eco - up to 117h. Modes: momentary, full power, low power, eco and strobe. Multi-mode electronic push button switch. Impact resistant: up to 1m. Water resistant: up to IPX4. Uses three D cell batteries (not included). Color: Stealth Matte Black.