11 3/4 overall. Anodized aluminum construction. Unique quick click system to access: High power mode (625 lumens); Low power mode (130 lumens); Eco mode (58 lumens with run time of 117hrs); Momentary mode; Strobe mode. Fast focusing spot to flood with 1/4 turn of head. User-configurable for civilian, military or law enforcement duty. Uses three D cell batteries (not included). Water resistant. Color: Gray. Hang packaged.