JN 26A Three-Mode Sinewave Controller Conversion Kit with V889 115PDD MS-BK-2R TT-008 KT-BZ-4(8) Use for 500W 750W Ebike Motor. Made of high quality material, durable and practical to use. 24/36/48V 17A 500/750W Sine Wave Controller+V889 Display Control Panel For Kugoo M4 and other Electric scooter, ebike. The controller only fit for UART No.