How about Used them: 1.Please contact to the Power switch off ,checked power input,Hall,Throttle(Do not reverse the polarity),motor,and self-learn lines are connected 2.Turn Power On,If motor spins slowly,disconnect the self-learn line,Turn the throttle and the motor will speed up accordingly,Return throttle to zero.Calibration procedure complete.If Motor spins in reverse.disconnect the self-learn line once and reconnect it.The motor will change direction.Disconnect the self-learn line turn the throttle,and the motor will speed up accordingly.Return throttle to zero.Calibration procedure complete. 3.If the controller funcation abnormally,Please cycle power and follow the above instruction again.Install in a well-ventilated location and insulate all connect. Fearures: Suitable for electric bicycle&scooter,Mechanical or electric forklift ect Features:Speed limit,Anti-thelf,EBS Rated Voltage:36/48Volts Rated Power:350W Phase Angle:Slef-study Throttle Voltage:1.1-4.2V Brake Level:High/Low Under Voltage Protection:31/41±0.5V 3Phase 60 or 120 degrees Operating Condition:-40 to 80degrees Size:10.5*7*3.5cm Funcation: 1.Black-red-red Power Source 2.Red-Yellow-Blue-Green-black Motor Phase 3.Yellow-Green-blue Hall Signals 4.Gray Metre Signals 5.Black-red Anti-thelf Power Source 6.Yellow-Blue-Green Anti-thelf 7.White-white Self-learn 8.Pink-Pink Speed Limit 9.Purple Brake signale High 10.Black-Blue with White Brake signale Low 11.Red-Green-black Throttle Signa