1.Voltage:48V 2.LED light 3.high efficiency 4.we design it according to your demands 5.we offer you the best price 1. speedometer used in motorcycle2.customized according to the manufacturer's requirments. Length and width are 60 * 40mm voltage is 64 volts, blue display 1.with fault display (motor failure, brake handle failure, controller failure, undervoltage protection, cruise, charging display ...