Features1The controller shell is made of highquality aluminum alloy with groove design, durable. 2It has good heat dissipation function, which can protect the internal circuit and avoid thermal overload. 3The brushless motor controller provides stable speed and sensitive control of braking and direction changes. 4The brushless motor controller for electric scooters is easy to install and use. 5The LCD display handle is suitable for 22.5mm/0.9in handlebars, and it can show the power and state of the scooter.SpecificationItem Type: Controller and Handlebar Set for Electric ScooterMaterial: Aluminum AlloyHandlebar Wire Length: Approx. 180cm/5.9ftController Box Size: Approx. 11.5x8.5x4.5cm/4.5x3.3x1.8inPower: 450WCurrent-limiting: 23AVoltage: 36V/48VMeanings of the Color of Handlebar Wire:1. Red: Power Input2. Yellow: Gate Output3. Blue: Signal Transmission4. Green: Signal Receive5. Black: Cathode HandlebarWeight: Approx. 850g/1.9lbPackage List1 x Controller1 x Handlebar1 x Half Twist Throttle1 x Meter1 x Handlebar Buckle1 x Instruction