Aqara Light Switch H2 EU is a smart switch based on Matter over Thread and Zigbee communication protocol that can control lights and other devices with great flexibility and compatibility. It fits standard 55 mm switch frames, and features optional neutral wiring for more installation flexibility. It allows for remote control, scheduling, power monitoring, wireless switch mode, and other functions, and the MARS-Tech, which greatly improves the reliability of smart connections for Aqara Switch and Aqara light.