Feature:1. Good Heat Dissipation: The controller shell is made of high quality metal with designed to the internal circuitry from thermal overload due to good heat dissipation.2. Scope of Application: The 36V 48V 450W 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 450W brushless motor controller provides stable speed and sensitive control of braking and directional changes.5. Voltage Power and Current: Controller box size is about 11.5x8.5x4.5cm / 4.5x3.3x1.8in. 36V 48V voltage, 450W power, 23A current limit, 30V 42V low voltage.Specification:Item Type: 36V 48V 450W Motor Brushless Controller LCD Display Throttle Grip KitMaterial: Aluminum AlloyVoltage: 36V 48VPower: 450WCurrent Limit: 23ALow Voltage: 30V 42VColor: As Pictures ShownWeight: Approx. 965g / 2.1lbController Box Size: Approx. 11.5x8.5x4.5cm / 4.5x3.3x1.8inHow to Use:The LCD display socket can be connected to the display interface of the controller to realize the function. If you need to connect other accessories, please follow the manual.Package List:1 x Controller2 x Throttle Grip1 x LCD Display1 x Washer2 x Key1 x Manual