Features1Good 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. 2Scope 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. 3LCD 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. 4Sensitive Braking Control: The 36V 48V 450W brushless motor controller provides stable speed and sensitive control of braking and directional changes. 5Voltage 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.SpecificationItem 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 / 4.5x3.3x1.8inPackage List1 x Controller2 xThrottle Grip1 xLCD Display1 x Washer2 x Key1 x Manual