Features1Use single chip as the main control chip to control and protect the electric motor and battery of the electric vehicle. 2With undervoltage/overcurrent/stall and other guard, ensures the use and safety of electric bikes. 3It is suitable for electric bicycles, electric tricycles, electric scooters, which has a wide range of applications. 4Easy to install, no complicated tools required, bring much convenience for you. 5Adopt highquality aluminum and plastic material, sturdy, anticorrsion and reliable.SpecificationCondition: Item Type: Throttle Grip + ControllerMaterial: Aluminum + PlasticColor: As picture shownRated Power: 500WUndervoltage: 8.50.5AHandlebar: 1-4VController Box Size: Approx. 8.3 x 6.7 x 3.8cm/3.3 x 2.6 x 1.5inHandlebar Cable Length: Approx. 2.17 Meters/7.1ft5Package List1 x Controller1 x Throttle Grip