High-power load: The receiver features a 40A relay, capable of handling high-power electrical appliances with stable long-term control. Maximum load: 30A. Strong RF signal performance ensures reliable operation through walls and doors without interference; maximum range up to 328FT in open area. IP65 waterproof design allows the wireless remote control switch to be used safely indoors and outdoors, even in wet conditions. 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 pumps, motors, lights, fans, dust collectors, sprayers, car wash systems, bells, and various types of electrical equipment.