Model ML50L. 10 1/4'' overall. Black aluminum housing. Unique quick click system to access: High - up to 611 lumen output with 16 hour runtime; Low - up to 105 lumens with 42 hour runtime; Eco - up to 20 lumen output with 153 hour runtime. Fast focusing spot to flood with 1/4 turn of head. Impact resistant to 1m. User-configurable for civilian, military, or law enforcement duty. Uses three C cell batteries (not included). Hang packaged.