Some products price list; 
 (Water scooters) Used motor controller products underwater diving board, each 28 yuan. 
 Electric bike 24V, 36V 26 per each brush control. Has power door locks, charge, voltage, speed brush controller jack .48 V per each 28 yuan 37 yuan. Electric motorcycle controller 55 each dollars. 36V electric bicycle brushless controller 80 each, 24V 85 yuan each. electric motorcycle brushless controller per 180. all kinds of cargo tricycles, three tricycles and other small vehicles with brush control 60-120 yuan per device .48 VDC-DC converter 24 yuan each. for electric tour bus converter using each 200. all have under-voltage, over current, current limiting protection and other conventional features, but also can reverse motor controller. postage themselves. otherwise, and a variety of high-power converter controller features many different specifications, please purchase.