For E-Bike Speed Control, Alomejor Offers A 48V, 60V, 64V, 1000W, And 1500W Product Details ?MULTI FUNCTIONS?For power supply, power supply li ion, electric door lock, motor phase line, hole line, speed up the line, dial the three speed lines, low level brake lines, high brake line, general instrument line, anti theft alarm the power cord, anti theft alarm signal lines, lines to reverse, intelligent recognition from learning. ?STRONGER CLIMBING POWER?The electric bike dc motor control climbing power is stronger, the motor operation sound is small, eliminate tire noise. ?SINE WAVE MOTOR?This electric bicycle motor controller can drive sine wave motor, square wave motor, no hall motor. 12 tube (dual mode square wave) controller. ?START MORE SMOOTHLY?This speed brushless controller makes drive motor start more smoothly, ride more comfortable. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.