100% new and high quality. Fine workmanship and perfect style. Easy to install and in use. Mountain bike lithium battery modification accessories Quantum 36V/48V 6-tube KT-14A sine wave controller waterproof connector Warm Tips: Please make sure your controller is KT controller (communication protocol) before using on your device. KT controller is only suitable for KT series accessories, such as KT display. Type:KT14A fully waterproof controller Rated voltage:36V48V Current:141A Low voltage protection:DC30/400.5V FET:6 tubes Rated current:7A Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color:Silver Material:Metal Package Contents: 1 * Electric Bike Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.