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 Kit Material: Aluminum Alloy Voltage: 36V 48V Power: 500W Current Limit: 28A Low Voltage: 30V 42VColor: As Pictures Shown Weight: Approx. 1.056kg / 2.3lb Controller 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