MQ Ebike Brushless Motor Controller 48-72V 2000/3000W 18-FET 45A. NOTE: It can work with broken hall sensors. Electric Bicycle 45A Brushless Controller. Cable length: 10-16cm (Approx). Speed setting: 1-4.2V. Brake input: Low Level. Low voltage protection: DC30/68±0.5V. Big 9 pin motor connector. 1 X 45A MQ Controller. We’re dedicated to your satisfaction. Your experience is important to us.