Feature 1Compatibility: With 72V rated voltage, 50A Bus current, 180A phase current, the electric motorcycle controller is compatible for QS Motor Electric motorcycle mobility scooters up to 1500W. 2Efficient Motor Control: Replacing with our controller can significantly control and increase motor speed up to 65km/h, ensuring a powerful performance for your electric scooter. 3Stable Performance: Sine wave type controller has stable effect, not easy to fluctuate. It can be well matched with QS hub motor or QS middrive motor. 4Premium Material: Electric motorcycle speed controller is made of aluminium alloy and ABS, highly resistant to high temperatures and erosion, ensuring long term stable use. 5Self Learning: Sine wave controller is a brushless DC controller with self learning function, it matches well with QS motor, if you want to match with new brand motor, some parameters need to be tested by yourself.Item Type:ElectricMotorcycleControllerMaterial: Aluminium alloy+ ABSModel: DK72180Voltage: 72V (36-100V, default is 72V)Bus Current: 50APhase Current: 180AMaximum Speed: 65km/h (The specific speed needs to be combined with vehicle weight and wind drag)Fitment: Fit for 1500W QS Motor Electric motorcycle mobilityscooter Package List1 x Controller1 x Cover5 x Screws2 x Wiring