Rearlight Retro LED Battery red Good looking and best quality The Retro is a rear fender with a hip retro design and LED technology. Compliant with French regulations. Operates on 2 AAA batteries. Equipped with a powerful LED Burn time approx 70 hours Includes “Battery low” indicator Retro design Integrated reflector Water and shock resistant Width: 43 mm (~1,69 inches) Length: 100 mm (~3,94 inches) red with black base