Check the listing for details. Fit for Electric Bicycle E-bike Brushless DC Motor Speed Controller 36V/48V 350W. Condition: New. Listed at 12.03 USD. Product Feature: Voltage: 36V/48VWattage: 350WThrottle : 1-4V Short voltage protect :31.5±0.5V/42±0.5V Color: silverDimension: 105 x 70 x 35mm/4.13 x 2.76 x 1.38"Casing material: Aluminium How to use? Turn off the power before wiring. 1. Connect the learning switch. 2. Connect the motor wire(phase A, phase B, phase C). Then connect the hall plug. 3. Connect the power and the twist grip plug. 4. Twist the grip plug. If the motor rotate reversely, cut off the learning switch, then connect the learning switch again. If the motor doesn’t rotate, check the wiring. If the motor forward rotation, go to step 5. 5. Keep the motor working at least 1 minute, cut off the learning switch. 6. Twist the grip plug. If the motor works normal, connect other wire. If not, adjust the twist grip wire, until the motor works normally. Please check pictures for details. Package list: 1 X Brushless motor controller Payment We accept payment via Paypal,Google Pay,VISA,Master Card,American Express,Discover,eBay Mastercard payment . Shipping All items will be shipped to buyers eBay address. Please make sure your address in eBay matches the address you would like us to ship to before payment. Easy Return If you are unhappy with your purchase for any reason, US buyers can return it to us in an un-used condition in the original packaging within 30 days of purchase and well give you a refund or exchange. The refund/Exchange will not include postage/eBay costs. Please note you MUST contact us to obtain a Return Authorization Number before returning any part. Any parcel without the Return Authorization Number will be rejected. If your item is faulty or was incorrect, you must contact our sales representative before returning the parcel and we will endeavour to solve the problem effectively. Video or picture is required to show the item condition before we issue the Return Authorization Number. Important notice: 1. Any returned item(s) without Return authorization number will be rejected. 2. Please return your item(s) in original packaging and ensure that all packages are securely wrapped. 3. We will not accept responsibility for loss or damage of goods during transit, please ensure that the insurance cover option is taken where possible. Warranty Most of the products have warranty .In the very unlikely event that you have a problem with our product, please contact us via eBay messages. Feedback We aim to maintain high standards of service and strive to achieve 100% customer satisfaction! Your feedback is very important to us, and we sincerely hope that you can contact us immediately before providing us with neutral or negative feedback, so that we can solve your problem satisfactorily. All rights reserved.