Upgrade your smart home with the Aqara Wireless Knob Smart Switch H1, , you can easily adjust settings to match your lifestyle, dimming of smart light to fit into the mood and create a comfortable environment. Powered with a long-lasting CR2032 battery, you can enjoy reliable use without the need for frequent replacements. The 86x86mm square face plate is the exact size of standard switches in Singapore, ensuring a seamless integration into your existing setup. Simplify and streamline your home automation with the Aqara Wireless Knob Smart Switch H1