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Add remote multiprotocol connectivity to a light switch, wall outlet, or an electrical appliance with the Shelly 1 Gen 4 Dry Contact Smart Switch. This dry contact smart switch fits behind a wall switch or outlet to add Wi-Fi, Zigbee, Matter, or Bluetooth remote control over lights and connected devices. It features 1 switch/button input, 2 power supply inputs, and 1 potential-free contacts relay input. It's compatible with various load types, such as resistive loads (incandescent bulbs and heating devices), capacitive loads (capacitor banks, electronic equipment, and motor start capacitors), and inductive loads (LED light drivers, transformers, fans, refrigerators, and air conditioners).
The Shelly 1 Gen 4 operates without the need for a smart hub and can be easily controlled via the Shelly Smart Control app (for iOS and Android). It is also compatible with voice assistants l