Precision Series. 5 1/4" overall. Black HAIII military grade hard-anodized finish aero-grade aluminum alloy housing. Anti-roll design offers a firm grip. CREE XM-L2 (T6) LED. Three modes. Brightness and runtime with 18650 Li-ion battery: High 800 lumen output with 4 hour 30 minute runtime; Medium 290 lumen output with 9 hour runtime; Low 40 lumen output with 26 hour runtime. Brightness and runtime with two CR123 batteries: High 800 lumen output with 1 hour, 30 minute runtime; Medium 400 lumen output with 2 hour, 30 minute runtime; Low 70 lumen output with 10 hour, 30 minute runtime. (Batteries not included). Crystal Coating Technology combined with "Precision Digital Optics Technology" for extreme reflector performance. Candlepower - up to 11,100cd. Dual-switch tail cap designed for tactical use and easy application. Strobe Ready button for quick access to Strobe Mode. Integrated LED's on tail switch to indicate remaining battery power. Toughened ultra-clear mineral glass with anti-scratch coating. Waterproof in accordance with IPX-8 (two meters submersible). Impact resistant to 1.5 meters. Comes with black nylon belt holster, CR123 battery magazine, pocket clip, tactical ring, lanyard, rubber switch cap, and spare O-ring. Boxed with hanging tab.