1000W 48V Three-speed Brushless Motor Controller for E-bike & Scooter (3 Phase 60&deg;or 120&deg;Brushless Motor) This controller is Suitable for electric bike & scooter (3 phase 60 or 120 brushless motor), it has EBS;Three-speed;Anti-theft and other featureshttp://www.soonwell.com/ebay_file/user_manual/Controller-Wiring-Guide.pdf Item's Rated Voltage is 48 Volts and Rated Power is 1000 Wattshttp://www.soonwell.com/ebay_file/user_manual/Self-study-wiring.txt Phase Angle: self-study--Throttle Voltage:1.1-4.2V--Under Voltage Protection: 42 Volts0.5v Controller adapts waterproof design , you can use it Conveniently at your daily time (Only those 8 wires(3 phase-cables & 5 hall-cables) DC brushless motor that can work with this controller, other brushless motors are not compatible) It has 4 groups neccessary cables(power cables, E-lock cables, Throttle-cables & Motor-phase cables), when hook up these 4 groups cables, the E-bike can run normally. Besides, these controllers have other optional functions, users can hook them up according to your applications