Enhanced Performance: This 4000W motor speed controller optimizes the operation of your electric tools by providing precise voltage adjustments.Variable Control: Easily adjust the speed with a simple turn of the knob. This flexibility allows for a wide range of applications, from delicate woodworking to robust metal grinding.Easy Installation: The compact design and clear instructions ensure a hassle-free setup, allowing you to quickly integrate this regulator into your workspace.Output voltage:0-220V adjustable( Output voltage display)Limit power:4000w (adapt to 2000W resistive load)Adjustable voltage range:0-220V Promise adjustable(under load conditions)step-down to ov, step-up 10V from 9ARated current:10AMax current:18A (Overload protection 10A)Due to different batches, there may be differences in product appearance and printed text, which will not affect use.Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on.Voltage:AC220-250VColour:BlackMaterial:ABSPackage Contents:1 * Motor Speed ControllerOnly 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.