High-power charge: The relay uses a 40A relay, which can charge high-power electrical appliances to ensure long-term stability control. (Note: Maximum load: 30A). Strong Signal: Adopts RF technology, can pass through walls, floors and doors, and control the receiver from anywhere within a reliable distance. Maximum range up to 1 m without obstacle. Easy to Control: The learning code has a high level of security for its low repetition rate and re-learning mode, it can erase old code and re-learn new code. If a remote control is lost, you can do thatalways check. More flexibility: stable and reliable performance, high reception sensitivity, with two remote controls, more flexible use. Wide Application: This remote relay is used in lamps, electric doors, water pumps, motors, windows, gates, industrial control and security and other fields. >