Feature: 1. Compatibility: With 72V rated voltage, 120A Bus current, 360A phase current, the electric motorcycle controller is compatible for QS Motor Electric motorcycle mobility scooters up to 3000W. 2. Increase Motor Power: Brushless motor controllers effectively control the motor, which can significantly increase the speed and power of the motor, reaching a maximum speed of 105km/h. 3. Stable 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. 4. Premium Material: Electric motorcycle speed controller is made of aluminium alloy and ABS, highly resistant to high temperatures and erosion, ensuring long term stable use. 5. Self Learning Function: 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. Specification: Item Type: Electric Motorcycle Controller Material: Aluminium alloy+ ABS Model: DK72360 Voltage: 72V (36-100V, default is 72V) Bus Current: 120A Phase Current: 360A Maximum Speed: 105km/h (The specific speed needs to be combined with vehicle weight and wind drag) Fitment: Fit for ≤3000W QS Motor Electric motorcycle mobility scooter. Package List: 1 x Controller 1 x Transparent Cover 5 x Screws 2 x Wiring