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 9A Rated current:10A Max 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:UK plug,it applies to Malaysia, the United Kingdom and so on./EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on./US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on. Voltage:AC220-250V/AC110V Colour:Black Material:ABS Package Contents: 1 * Motor Speed Controller 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.