Color: Black Voltage: 1.2 - 4.2 V Shine Range: 100 m Bulb's Lifetime: 100,000 hours Powered by: 1 x AA Battery (not included) Size: 9.3 x 2.5 x 2 cm / 3.66 x 0.98 x 0.78 inches Handlebar diameter: 22 - 25 mm Package includes: 1 x Waterproof Clip-On Flashlight, 1 x Bicycle Mount