Yeelight plans Thread-based smart devices
Yeelight is entering the Thread market with a new IoT radio module, signaling future Matter-over-Thread lighting products and expanding options in the smart home.

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Notable smart lighting maker Yeelight has appeared in new FCC filings for an IoT radio module, signaling its plan to develop Thread-enabled devices.
Yeelight is a major smart light manufacturer, known for lighting with top-tier ratings and specs. For instance, its light strip has a High Color Rendering Index (Ra) of 97. Yeelight’s existing tech stack in connectivity primarily covers Bluetooth and Wi-Fi. This new development suggests the brand’s first steps toward Matter-over-Thread products.
A new journey to Thread
The module, named TH-EFR32-MG21 IoT Module With Thread, is a pre-built component designed for various smart home devices. It features the popular MG21 radio chip from Silicon Labs, which supports Bluetooth, Zigbee, and Thread. The FCC filing includes a Thread test report, confirming its intended use.
Specifications show that the module offers 1,024 KB of flash and 96 KB of RAM – sufficient for basic lighting products and sensors.
Yeelight has confirmed its plan to develop Thread-based smart home devices, but did not share further details with Matter Alpha.
Since there is still no certification for specific products, we may need to wait a while until the new product arrives on the market.
Why it matters to Matter
Yeelight has already released a number of Matter devices, including the Yeelight Cube Smart Lamp, Yeelight Smart Lamp Cube Lite, and the Yeelight Obsid RGBIC Light Strip. It also offers a Matter bridge that brings its Bluetooth-based lights and switches into the Matter ecosystem.
This latest development is significant in the Matter and Thread space, where there are currently few options for Matter-over-Thread lighting – mainly from Nanoleaf and Aqara. Yeelight’s extensive lighting portfolio, which includes business-oriented solutions, could bring much-needed diversity to the category. With its entry, consumers and commercial users alike may soon have more high-quality Matter-over-Thread lighting choices.
Similar to wall switches, lighting is one of the most essential elements in a smart home setup. In the context of Thread, this is even more critical. Lights are typically always-on devices, making them ideal routers for extending Thread network coverage (assuming you already have a Thread Border Router) and enhancing its stability. Ceiling lights, in particular, are well-positioned to maximize coverage throughout the home.
(Source: FCC)
About the Author

Ward Zhou
Products Editor and Writer
Ward Zhou has been immersed in the smart home and industrial tech space throughout his career. Based in Shenzhen, the industrial hub of smart home, he began his journey with local media outlets and a prominent smart home solution provider, eWeLink, cultivating his expertise in smart home devices and industrial dynamics. Ward has contributed hundreds of review and news pieces to respected publications such as TechNode, PingWest, and Caixin Global. When he’s not covering the latest in tech, Ward enjoys coding, design, street photography, and video games.

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