Features1This is a general-use controller, most e-bike/scooter controllers can be replaced by it. 2This controller maybe different with original, buyer should make sure capable to handle it before use it. 3The red and black cable link up the battery, and the other two link up the motor, and there are introductions for others. 4This product is suitable for electrombile and other electric bicycle. 5Great accessory for electric bicycles.SpecificationFeatures:This is a general-use controller, most e-bike/scooter controllers can be replaced by it.This controllermaybe different with original,buyer shouldmake surecapable tohandle it before use it.The red and black cable link up the battery, and the other two link up the motor, and there are introductions for others.This product is suitable for electrombile and other electric bicycle.Great accessory for electric bicycles.Specifications: and High QualityMaterial: Aluminum AlloyVoltage: 24VSpeed Governing: 1-4VPower: 250WBrake Crank: Mechanical Normally OpenSuitable for Electric BicycleWeight: Approx. 140gPacking List:1 x Electric Bicycle ControllerNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.Package List