The Lezyne Ebike Rear Fender Stvzo Light uses a German StVZO optimized lens with a wide light spread.Two high output LEDs provide 11 lumens. IPX7 water resistant rating. Composite matrix fender mounting system. E-bike compatible (6v input, 0.6w / 12v input 1.2w) easily plugs into batteries from top makers including Bosch, Shimano and Yamaha. Stainless Allen key hardware and 130cm long power cable included.Lezyne\'s e-bike lights are powered by the motor of an e-bike and need to be manually installed. Proper installation may require some disassembly of the bike and motor (depending on make and model battery type) and additional wiring to connect the light to the motor. Please contact the e-bike or motor manufacturer for installation instructions. It is highly recommended to have a trained e-bike professional install your lights for you.Lezyne Ebike Rear Fender Stvzo Light SpecificationsMAX LUMENS: 11COLORS: Black