Feature:1. No noise and vibration when riding, more stable, higher efficiency, lower current consumption.2. Made of high‑quality aluminum alloy and plastic, sturdy and durable, with long service life.3. Reduce the temperature rise of the controller and increase the continuous mileage of the vehicle.4. For KT LCD4 display used is only suitable for KT series controllers, not for other controllers.5. Suitable for 36V/48V 500W motor, suitable for DIY electric bicycle, high performance.Specification:Item Type: E‑Bike Controller KitMaterial: Aluminum AlloyColor: As Picture ShownWeight: Approx. 660.0g/23.3ozRated Current: 11ARated Voltage: DC36V/48VSpeed Setting: 1-4.2VLow Voltage Protection: DC30/40±0.5VMaximum Current: 22±1AHow to use:The interface on the controller can be connected to the socket of the accessory to realize the function, please refer to the wiring diagram for details Package List:1 x Controller1 x Pedal Assist Sensor 1 x Thumb Throttle1 x Meter 1 x Meter Manual1 x Wiring Diagram