Features1Aluminum alloy housing, with groove designed, protect the internal circuit, good heat dissipation function to avoid heat overload. 2Wire and interface is wear-resistant, ensuring long-term use of low fault. 3Select the corresponding voltage controller according to the battery voltage level of the E-Bike. 4Easy and fast installation, no need complicated tools, save time and effort. 5Anti-slip, with over-current protection, dependable to use. 6Built-in smart chip, provides more stable startup performance.SpecificationItem Type: Brushed ControllerMaterial: Aluminum AlloyColor: SilverModel: YJD02Quantity: 1 Size: Approx. 9 x 7 x 3.5cm/3.5 x 2.8 x 1.4inPower: 500WApplicable Motor: 180W-1000W Various Common DC Brush MotorPackage List1 x Brushed Controller