Feature:1. Control Interface: The controller harness functions include power supply positive and negative poles, motor three phase line, headlight interface, tail lamp, brake lamp interface, brake lamp headlight signal, battery power output, intelligent identification line, low brake power failure, PAS1:1 power assistance, speed regulating throttle knob, master switch, LCD instrument interface, and motor Hall interface.2. Perfect for Match: Allows for wide appplication on electric bike, electric scooter and so on, the bike motor controller is suitable for handlebar with 22.5mm diameter.3. Faster in Cooling: The controller casing is made of metal with grooved design, and the quick heat dissipation can protecting the internal circuit from thermal overload.4. Great Performance: Mainly made from ABS and aluminum alloy materials, the 36V 48V scooter controller has 500W power and 28A limit current, very efficient and reliable.5. Simple to Install: Designed to have a compact size and a light weight as well, the controller accessory enables convenient installation that can be finished in minutes.Specification:Item Type: Electric Bike ControllerMaterial: ABS, aluminum alloy. Voltage: 36V, 48VPower: 500WLimit Current: 28ALow Voltage: 30V, 42V.Package List:1 x G20 Display Panel1 x Electric Bike Controller1 x User Manual