Features1Application: The controller kit is suitable for electric scooters and electric bicycles, and is suitable for 22.5mm handlebars. The kit is also easy to install and use. 2Good Heat Dissipation: The controller shell is made of metal with indentation design. Its good heat dissipation function can give protection to the internal circuit to avoid thermal overload. 3Multi Data Display: The meter can display single running mileage, real time speed, battery power and voltage, low power reminder, gear indication total mileage, fault, etc. 4Sensitive Control: The brushless motor controller can provide stable speed and sensitive control of braking and direction change. which has high performance. 5LCD Display Screen: The LCD display can clearly display the status and data. The backlight allows you to clearly see the screen in a dim environment. The button operation is fast and easy to use.SpecificationItem Type: Electric bicycle controller kitMaterial: Aluminum alloy, ABSWeight: Approx. 921g/32.5ozVoltage: 36V 48VPower: 450WCurrent Limiting: 23ALow Voltage: 30V 42VPackage List1 x Controller1 x Meter Thumb Throttle1 x Grip2 x Key1 x Instructions