High-power load: The receiver features a 40A relay, capable of handling high-power electrical appliances with reliable long-term control stability. (Note: Maximum load: 30A). Strong RF signal performance ensures reliable operation through walls and doors without interference; maximum range reaches up to 328FT in open areas. IP65 rated waterproof design allows the wireless remote control switch to be used safely in both indoor and outdoor environments, including wet locations. Do not submerge in water. Easy installation: Simply connect the receiver between the device and the power source. Control your equipment on and off remotely using the included remote control. Wide application: Suitable for use with mud pumps, motors, lamps, fans, dust collectors, sprayers, car wash systems, bells, and various types of electrical equipment.