Applicable Motor Type: Fit for QS Mid Drive Motor, fits for QS Hub Motor, applicable for electric motorcycles, electric bicycles. Motor Speed Control: The controller can effectively control the motor, obviously enhance the speed and power of the motor, ensure high speed motor operation. Fine Workmanship: The high power controller manufactured with quality materials to improve work efficiency, provides powerful start, strong climbing force, and with low noise. High Performance: Protect the battery and extend battery life, and can also increase the driving distance, the effect is stable, not easy to fluctuate, and effectively increase motor power. Durable in Use: When the motor is out of phase, the controller will protect it to avoid burning, which is resistant to high temperature and rust, and can be used stably for a long time. Voltage: 72V Overvoltage: 85V Low Voltage: 63V Rated Current: 120A Peak Current: 380A Boost Current: 200A Maximum Efficiency: 14400W Revolutions: 6000 Number Of Pole Pairs: 5 Hall Angle: 60 Limiting Current: 150A Protection Class: IP67 Flux Weakening: 200% Maximum Efficiency:? 92%. Functions: Hall plug, reversing, 0V low brake, throttle (0-5V), 12V high brake, ignition, single wire/Hall gauge line, program port, three speed, sport mode, parking, anti theft, charging regeneration, weak magnetic current. Fits for QS Mid Drive Motor and for QS Hub Motor. 3 x Cable Harness. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.