Usage Tips:Engine speed controller 230VAC 2000W Controller of rotational speed, voltage and power of all kinds of 230VAC devices. If you need to change the speed of your engine, youve come to the right place. Device designed ro to adjust all kinds of receivers such as: Power tools Universal engines Heaters Fans and other Regulation based on phase regulation. The device equipped with a universal socket ( EU /UK) most closely do the Polish standard of sockets and plugs. Description of pins: Power plug Main switch Voltmeter (indicates adjustable output voltage) Voltage regulation potentiometer do connection of receivers (UE/UK) Technical parameters: Supply voltage (Input) 200-240 VAC Voltage regulation range 30-250 VAC Maximum power 2000W Dimensions 120x65x55mm (length/height/width) Degree of protection IP40 Operating temperature -20 do 60C Operating humidity 5-90% (non-condensing) Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!