Motor Speed Pinpoint Regulator ABS Electric Controller Knob Transmitting Machine AC 220V40W

1、Elaborate Making: Small in size which is convenient to carry arround with you and with high accuracy wide speed range 2、Durable Structure: The controller uses electronic circuits and integrated components which has a long service life 3、Excellent Efficiency: Wiring is simple and easy to understand easy to install save time and improve efficiency 4、Adjustable Voltage: Because the knob is adjustable the voltage can be adjusted freely which is convenient and simple 5、Classic Appearance: After beening carefully crafting not only having a classic appearance but also has a high cost performance