Feature:1. Good Heat Dissipation: The controller shell is made of high quality metal with grooves designed to protect the internal circuitry from thermal overload due to good heat dissipation.2. Scope of Application: The 36V 48V 500W brushless motor controller is easy to install and use, comes with an LCD display and speed control throttle grip, and fits 22.5mm handlebars.3. LCD Display Funtion: The LCD display can clearly display the status and data, the backlight allows you to see the screen clearly in the dim environment. Buttons for quick operation.4. Sensitive Braking Control: The 36V 48V 500W brushless motor controller provides stable speed and sensitive control of braking and directional changes.5. Voltage Power and Current: Controller box size is about 15x8.5x4.5cm / 5.9x3.3x1.8in. 36V 48V voltage, 500W power, 28A current limit, 30V 42V low voltage.Specification:Item Type: 36V 48V 500W Motor Brushless Controller LCD Display Throttle Grip KitMaterial: Aluminum AlloyVoltage: 36V 48VPower: 500WCurrent Limit: 28ALow Voltage: 30V 42VColor: As Pictures ShownWeight: Approx. 1.056kg / 2.3lbController Box Size: Approx. 15x8.5x4.5cm / 5.9x3.3x1.8in.Package List:1 x Controller2 x Throttle Grip1 x LCD Display1 x Washer2 x Key1 x Manual