Features 1??Compatibility: ECU sine wave controller is fit for QS wheel hub mid drive motor, bringing you professional use results. 2??Low Noise: High power controller can improve the work efficiency, strong starting power and low motor noise, practical for use. 3??High Power: Effectively control the motor, significantly enhance the motor speed and increase the motor power. 4??Performance: The controller has a protection function to avoid motor burnout, not only to protect the battery, but also to increase the running distance. 5??Upgraded Design: Professional design with for CE, for CCC certification, support programming, stable effect and not easy to fluctuate. Specification Item Type: ECU Sine Wave Controller Material: ABS, metal 1. Available Battery Voltage: 48v-72v 2. Maximum DC Current: 100A 3. Current DC Boost: 130A 4. Peak Phase Current: 330A 5. Maximum Power: 7800w 6. Mosfets Details: 18 field effect transistors 7. Supporting Motor Rated Power: 2kw-3kw 8. Maximum Efficiency: 88% - 93% 9. Waterproof Grade: IP67 10. Certification: for CE, for CCC 11. Work Communication: for Hall Sensor 12. Computer Programmable Support Application: Suitable for QS wheel hub mid drive motor Package List 1 x Sine Wave Controller 3 x Wire Harness 7 x Screws 1 x Cover