EM100SP Brushless DC Controller ECU Programmable 48V to 72V 200A IP67 Waterproof for Electric Scooter Bicycle Item Type: Brushless DC Controller Material: ABS + Metal Voltage: 48V to 72V Overvoltage: 91V Low Voltage: 63V Bus Current: 200A Phase Current: 400A Speed: 4500 Number of Polar Pairs: 5 Hall Angle: 120 ° Limit Current: 80A Rated DC Current: 100A Maximum Power: 8600W Magnetic Flux Attenuation: 150% Rated DC Current: 340A Waterproof Grade: IP67 PC programmable support (with supporting debugging software) Function: 1. S mode 2. P mode 3. R mode 4. LIN 5. Temps 6. Theft prevention 7. High Brake 8. Three Speeds 9. CAN BUS 10. Kickstand Default functions of the controller: Hall plug, reversing, 0V low brake, accelerator (0-5V), 12V high brake, ignition, single wire, Hall meter cable, program port, three speed, sports mode, parking, anti theft, charging regeneration, weak magnetic current. EM series controller is a sine wave type controller, which is a weak magnetic brushless DC controller. Generally, it is better to match QS motor. If you want to match a new motor, some parameters need to be tested by yourself. Suitable for 1000-3000W motors