9 1/4" overall. Anodized aluminum construction. Unique quick click system to access: High power mode (524 lumens); Low power mode (143 lumens); Eco mode (58 lumens with run time of 69hrs); 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 two D cell batteries (not included). Water resistant. Color: Gray. Hang packaged.