8.75" overall. Clip. Lanyard. Anti-roll design. Impact resistant. CREE XP-L HI LED. Four Brightness levels: 1000 lumen output and 2.25 hour runtime; 500 lumen output and 4.25 hour runtime; 250 lumen output and 9.5 hour runtime; 90 lumen output and 31 hour runtime. 618m beam distance. Includes tactical ring, spare plastic cap, and spare O-ring. Features: high efficiency current circuit board; intelligent memory functions; reverse polarity protection; broad voltage drive circuit; and clear mineral glass crystal with antireflective coating. Aluminum reflector ensures a smooth and powerful beam. Waterproof in accordance with IPX-8 (Submersible to two meters). Requires 4 CR123A batteries (not included) , or 2 18650 batteries (not included). Black nylon belt sheath. Aluminum construction. Color: Black.