This is a multi-functional stepless speed regulator with an input voltage of AC220V, which is suitable for dimming, voltage regulation, speed regulation and temperature regulation. Widely used in: household appliances, industrial appliances, scientific testing instruments, factories, light industry manufacturing, electric power, etc. The stepless speed regulating knob is used to realize 0%-100% adjustment, the control accuracy is 1%, and the rated power can reach 500W. The product design has digital display, both brushless and brushed motors can be used, as long as the input voltage is AC220V., Weight: 0.26235009178 pounds, Manufacturer: Yarryuter