German StVZO optimized lens with wide light spread. Two high output LEDs provide 12 lumens. IPX7 water resistant rating. Composite matrix construction. E-bike compatible (6v input, 0.4w / 12v input 0.8w) easily plugs into batteries from top makers including Bosch, Shimano and Yamaha. Stainless Allen key hardware and 130cm long power cable included. 50 and 80mm mount spacing. Our 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.Features:12 Lumens,Powered by the motor of an E-Bike,Optimized lens with wide spread,IPX7 water resistant rating.