The Shelly 1PM Mini Gen4 Smart Relay adds remote control via Wi-Fi or Zigbee over lights or devices controlled by the switch or outlet. It features 1 switch/button input, 2 power supply inputs, and 1 relay output with power measurement and supports resistive (incandescent bulbs, heating devices), capacitive (capacitor banks, electronic equipment, motor start capacitors), and inductive (LED light drivers, transformers, fans, refrigerators, air-conditioners). The Mini Gen4 Smart Relay tracks power consumption of controlled devices, enabling you to remotely monitor energy usage and turn devices On/Off to save on electricity costs. The Shelly 1PM Mini Gen4 Smart Relay can be directly controlled and monitored using your smartphone or tablet using the Shelly Smart Control App for iOS/Android. Power Monitoring data is stored online in the Shelly Smart Control app for you to access and analyze historical usage of your monitored devices. The Mini Gen4 Smart Relay acts as a Bluetooth gateway for Shelly BLU devices to increase the size and scope of your smart home network. Additionally, Matter certification, as well as Zigbee and Wi-Fi range extenders, allow the Mini Gen4 Smart Relay to be included in a variety of smart home networks, including voice assistant ecosystems such as Amazon Alexa and Google Home. Enjoy enhanced home automation control and precise monitoring of your Shelly devices no matter where you are with the Shelly Smart Control app. The app connects to Shelly's cloud service to help you control your connected devices remotely and send notifications for all automated events in your home directly to your smart device.The Shelly Smart Control App supports real-time power metering with power management (PM) devices, smart plugs, and smart bulbs in order to allow you to build complex automation solutions for improved energy efficiency and lower electricity bills. NOTE: Requires connection to a Wi-Fi network. Manufacturer Part #: 1PM MINI GEN4.