Feature 1LONG DURABILITY: The high grade ABS, aluminium alloy material ensures durability and stability, capable of withstanding high temperatures and oxidation for long term use. 2ENHANCED MOTOR SPEED: By replacing the controller with ours, the motor's speed is significantly increased, reaching a maximum speed of 95km/h, effectively enhancing the motor power. 3SINE WAVE CONTROL: The stable sine wave controller effectively matches QS hub motor or QS mid drive motor, providing steady and dependable performance, not easy to fluctuate. 4HIGH PERFORMANCE: With a rated voltage of 72V, bus current of 50 to 65A, and phase current of 230A, suitable for 2000W QS Motor Electric motorcycle mobility scooter. 5SELF LEARNING FUNCTION: This brushless DC controller with self learning function is designed for QS Motors, while parameters should be tested for compatibility with new brand motors.Item Type: Brushless DC Motor ControllerMaterial: ABS, aluminium alloyModel: DK72230Rated Voltage: 72V (36-100V, default is 72V)Bus Current: 65APhase Current: 230AMaximum Speed: 85km/h (specific speed needs to be combined with vehicle weight and wind drag)Fitment: Fit for 2000W QS Motor Electric motorcycle mobility scooter Package List1 x Controller1 x Transparent Cover5 x Screws2 x Wiring