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. The stepless speed regulating knob is used to realize 0%- adjustment, the control accuracy is 1%, and the rated power can reach 500W. Widely used in: household appliances, industrial appliances, scientific testing instruments, factories, light industry manufacturing, electric power, etc. The product design has digital display, both brushless and brushed motors can be used, as long as the input voltage is AC220V. Product name: digital stepless governor Product model: ZFX-P1007 Default output: 50% Control range: 0%- Control accuracy: 1% Output type: direct output Rated power: 500W Save after shutdown: None Input voltage: AC220V Hole spacing: 88 mm Aperture: 3mm Note:Due to different printing batches, if there are slight differences in the words in kind, it not affect the use. Color:Silver Grey Material:ABS+Metal Package Contents: 1 * Speed regulator 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.