High-power charging: The receiver adopts 40A relay, which can charge high-power electrical appliances to ensure long-term stability control. (Note: Max Load: 30A) Singal-Strong powerful RF signal works through walls and doors without any interference; The maximum range is up to 328 feet unobstructed. IP65 waterproof construction - The remote control switch wireless waterproof is suitable for indoor and outdoor use. Use it safely even in damp places. Please do not soak it in water. Easy to install - Simply install the receiver between the devices to be controlled and the power supply. You can turn your device on and off from anywhere via the remote control panel. Wide Application: This long distance remote control switch is used in mud pumps, motors, lamps, fans, dust removal, insecticide machines, sprayers, car washes, bells, etc. various types of electrical equipment.