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.