Feature: 1. Applicable Motor Type: Fit for QS wheel hub motor, fit for QS medium drive motor, applicable for electric motorcycles, electric bicycles. 2. Motor Speed Control: The controller can effectively control the motor, obviously enhance the speed and power of the motor, ensure high speed motor operating. 3. High Performance: Sine wave controller has stable effect, not easy to fluctuate, high efficiency, IP67 proof, 170% flux weaking ratio, and CE, CCC certified. 4. Main Function: Equipped with Hall sensor, support PC programmable, program port, motion model, can be used for parking, anti theft, magnetic flux attenuated current. 5. Parameter: The Available Battery Voltage is 48V‑72V, maximum DC current is 300A, boost DC current is 80A, peak phase current is 300A, and maximum power is 18792W. Specification: Item Type: Sine Wave Controller Material: ABS 1. Available Battery Voltage: 48V-72V 2. Maximum DC Current: 300A 3. Boost DC Current: 80A 4. Peak Phase Current: 300A 5. Maximum Power: 18792W 6. Mosfets Detail: 12 FET 7. Matched Motor Rated Power: 800W-2000W 8. Maximum Efficiency: 87% 9. Degree of Water Resisting: IP67 10. Flux Weaking Ratio: 170% 11. Certification: CE, CCC 12. Working Communication: Hall Sensor 13. Support Programmable by PC Applicable Motor Type: QS hub motor, QS medium drive motor, compatible with QS motor, if it is another type of motor need to be tested by yourself Applicable Models: Electric motorcycles, electric bicycles. Package List: 1 x Sine Wave Controller3 x Wiring Cable5 x Screw