Feature:1. The controller is brushless motor controller, can provide stable speed, sensitive control braking and steering.2. Also a sine wave controller, which can work smoothly and quietly.3. The controller housing is made of aluminum alloy, which can protect the internal circuit.4. The controller housing also has good heat dissipation to avoid thermal overload.5. A good motor conversion kit for electric tricycle, rickshaw, electric bike and so on.Specification:Item Type: Motor Conversion KitMaterial: Aluminum Alloy + PlasticColor: As Pictures Shown Controller Box Size: Approx. 20.3x8x4 cm/ 8.0x3.1x1.6 inController Parameter:Power: 800WCurrents: 30A1Brake: Low LevelMotor Parameter:Nomimal Voltage: 48VDCOutput Power: 800WRated Speed: 560r/minRated Current: 22A.Package List:1 x Motor1 x Controller 1 Pair Handlebar Throtte 1 x Chain1 x Tooth1 x Power Line1 x Instrument Headlight2 x Keys 2 x Clamps1 x Wiring Pillar5 x NutsNote:1. The kit does not contain a battery, battery charger or battery case.2. The color of the accessory light is shipped randomly, and make sure you will not mind before ordering