Yuandai 36V?48V 350W Brushless Dc Motor Controller For Electric, Bike Scooter. 36V-48V 350W controller can work with hall sensor/hall sensorless Rated Voltage: 36V/48V Low Voltage : 31V/42V0.5V Rated Power: 350W Limit Current: 17A 1.pointer meter line 2. motor line 3.3-speed line 4.Anti-theft alarm line 5.self-learning line 6.hall line 7.throttle line 8.low brake 9.Anti-theft power line 10.Cruise speed line 11.battery?2 red wires is battery +?black is battery -? 12.high brake how to connect? 1.connect the motor line (color to color?must connect? 2. connect the battery line(2 red wires is connect to battery + , black connect to battery-?these wires must need connect) 3. connect the controller throttle line?color to color connect? 4. connect the hall line(if motor without hall line, don?t need connect) 5.docking the two self-learning lines, the wheel will forward or reverse. (1.if wheel forward ,Separate the self-learning line. 2.if wheel reverse, Separate the self-learning line. Docking the self-learning line again?if wheel forward ,Separate the self-learning line.) 6.other functions can be connected as needed. Product Features Application--It suitable for electric bicycles, scooter, etc. Premium Material--It made of aluminium alloy, this brushless controller is sturdy and durable. Sensitive Control--This item is a brushless motor controller, it can provide steady speed and sensitive control of braking and direction changes. High Performance--The wires and interfaces are durable, and ensure low malfunction of long time use. Easy to Use-- The interfaces have instruction labels on them for your easy installation. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!