The Shelly 2PM Gen4 is an advanced dual-channel dimming actuator that enables precise power monitoring. It supports various communication protocols, including WiFi, Bluetooth and Zigbee, and is designed for installation behind switches, sockets or lamp outlets. This device enables easy control and automation of lighting, fans, shutters and other bi-directional AC motors. With its compact design, the dimming actuator can be easily installed in wall and ceiling boxes, making it a flexible solution for modern smart home applications. Matter-certified for seamless integration into smart home systems. Multi-protocol chip for simultaneous communication via WiFi and Zigbee. Bluetooth functionality for direct communication with battery-powered devices. Local operation of all main functions, even in the event of network problems. High compatibility with over 200 partner systems, including Google Home and Amazon Alexa.