High-power load: The receiver adopts 40A relay, which can load high-power electrical appliances to ensure long-term stability control. (Note: Maximum load: 30A) The strong RF signal Singal -Strong works through walls and doors without any interference; The maximum range is up to 328FT without obstacle. IP65 Waterproof Construction - The waterproof wireless remote control switch is suitable for indoor and outdoor use. It is safe to use even in wet locations. 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 collection, insecticide machines, sprayers, car washes, bells, etc. various types of electrical equipment.-