Features1The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit and good for heat dissipation to avoid thermal overloading 2This item is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes. 3The wires and interfaces are durable, and ensure low malfunction of long time use equipped with connector instructions. 4Smart DC brushless controller can work smoothly and quietly. 5Suitable for electric bicycles, scooter, etcSpecificationFeatures:The controller shell is made of aluminium alloy with groove design, which can protect the inner circuit and good for heat dissipation to avoid thermal overloading.This item is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes.Thewiresandinterfacesaredurable,andensurelowmalfunctionoflongtimeuseequippedwithconnectorinstructions.Smart DC brushless controller can work smoothly and quietly.Suitable for electric bicycles, scooter, etc.Specification:Material: Aluminium alloyWorking Voltage: 48VRated Power: 500WCurrent: 28ALow Voltage Protection: 42VSuitable for: electric bicycle, scooter, etcSize: Approx. 147 x 84 x 44mm / 5.8 x 3.3 x 1.7inchWeight: Approx. 578gPackage List:1 x Brushless ControllerPackage List