Reliable Hub Motor Controller 3000W 48V 72V 80A 24mos for Electric Bike Scooter. Phase: automatic identification (60 ° / 120 ° all can fit). Brakes: low brake / high brake. Size: 225 118 68 mm. Net Weight:about 1.8kg. Contact the motor line. Contact the hall line(if motor without hall line, don’t need connect). Contact the throttle line. Contact the electric lock line. Contact the battery line(red:+, black:-). Docking the two self-learning lines, t wist throttle, the wheel will forward or reverse. If wheel forward, Separate the self-learning line. If wheel reverse, Separate the self-learning line. Then Docking the self-learning line again. Other functions can be connected as needed. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data. Also, the each additional item means exactly the the same color and size. Transit time may be a little delayed because of the bad weather. Just follow the Guest Checkout instructions.