Description: Material and Size: This 220V wireless remote control switch for water pump motors is compact (88mmx39mmx104mm) and features a double sided galvanized circuit board for high reliability. It has an extendable spring antenna to suit your needs.Long Service Life: The High Power Remote Control Switch is equipped with a reducer that reduces the voltages to a 30A relay, along with a high rate and low resistance capacitors. It's designed to withstand high voltages and offers a long lifespan.Easy Installation: The installation process is quick and easy. It can be controlled from a distance of up to 300-500 meters, making it ideal for use in large places or through walls.Intelligent Wiring: The first step: connect the wires of the remote control switch intelligently using an electric pen to distinguish the zero line (N) and live wire (L); The second step(code matching): pair the switch by pressing it for five seconds until the indicator light flashes, then click on/off on the remote controller; How to clear codes: Press and hold the power button for 5 seconds, the indicator light will flash, click on/off of the remote control, and the code will be cleared successfully.Package Contents: 1 motor and 1 remote control switch packed in a color box. Size Chart: 88mmx39mmx104mm/3.46inchx1.54inchx4.09inch Package Includes: 1 Motor 1 Remote Control Switch 1 Packaging Box Note: Please allow slightly errors due to manual measurement and different packages.