Aqara Smart Light Switch H1 EU uses Zigbee 3.0, which is characterized by better stability, compatibility and more functions and is compatible with Apple HomeKit, Amazon Alexa and Google Assistant. It can be installed even if your existing wiring is not equipped with a neutral conductor. It is compatible with 86mm square wall housing and with round EU wall housings. You can achieve more application areas by combining the Aqara Smart Light Switch H1 EU with other Aqara products. With the Aqara wireless remote switch H1, you can easily control the same lights from two or more places without additional wiring. The Aqara Smart Light Switch H1 EU can be part of your smart home solution. By converting into the function of a wireless switch, the switch can be controlled by automations with the Aqara motion sensor or the wireless Aqara mini radio switch, for example, while the switch button controls other devices.