The WHD02-Matter is a compact 16A smart relay module designed to add remote and automated control to mains-powered lights and electrical circuits. Installed behind a conventional wall switch or inside a suitable electrical enclosure, it allows connected loads to be controlled through a Matter-compatible smart home platform.

Using Matter over Wi-Fi, the module works with major smart home ecosystems including Apple Home, Amazon Alexa, Google Home and Samsung SmartThings. This gives users app control, voice control, scheduling and automation without being tied to a single proprietary platform.

The module supports 110–240V AC input and loads up to 16A, making it suitable for a wide range of lighting and appliance control applications. Its compact design makes it ideal for retrofit installations where smart control needs to be added without replacing the existing wall switch.

A neutral connection is required for installation. As this is a mains-powered device, installation should be completed by a suitably competent person.