Features1Good Heat Dissipation: The controller shell is made of aluminium alloy metal with grooves to protect the internal circuit from thermal overload due to good heat dissipation. 212V 500W: The voltage is 12V, the rated power is 500W, and the performance is stable and reliable. It has protection functions such as undervoltage protection, over current protection, stall protection, etc., ensuring the use and safety of electric bicycles. 3Brushed Motor Controller: The brushed motor controller can provide stable speed and sensitive control of braking and direction change. And it is applicable to electric bicycles, electric tricycles and electric motorcycles, with a wide range of applications. 4Thumb Throttle: The thumb throttle has a power display, which is intuitive and convenient, and can accurately determine the residual power. With cruise function. Applicable to 12V to 99V electric bicycles, refitted electric bicycles, scooters, tricycles. And it is suitable for lithium battery, water battery, dry battery and other batteries. 5Note: Be sure to wire the function line of the control controller, and do not simply wire it with the color of the controller. Once it is connected incorrectly, the controller or handle will be damaged.SpecificationItem Type: ElectricBicycleConversionKitMaterial: Aluminum alloy, rubber, ABSGross Weight: 453g/16.0ozController Type: Brushed controllerRatedPowerof Controller: 500WPackage List1 x Controller1 xThumb Throttle2 x Key5 x Wiring Plug Sleeve10 x Accessories