Legrand radiant Smart LED Dimmer (WWMRL51WH)
The Legrand radiant Smart LED Dimmer (WWMRL51WH) is Matter certified (certificate CSA246A8MAT44379-24, certified Oct 22, 2024). It uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller. A certified Matter device can be added to any Matter controller whose app supports its device type, such as Apple Home, Google Home, Alexa, SmartThings or Home Assistant; features vary by app. The maker hasn’t named platforms on a page we hold. Sold in the US at Amazon and Legrand.
Certificate data as of . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA246A8MAT44379-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Oct 22, 2024 · Connectivity: Wi-Fi, Bluetooth · Thread border router: Not needed (uses Wi-Fi)
- Works with
- Matter certified as a dimmable light, so it can work with Matter apps such as Apple Home, Google Home, Alexa and SmartThings when the app supports its device type; supported features vary by app. The maker hasn’t named platforms on a page we hold.
- CSA certificate
- CSA246A8MAT44379-24, certified Oct 22, 2024
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
- Model number
- WWMRL51WH
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CSA model/software record
Certificate: CSA246A8MAT44379-24Matter 1.0 certificate
Its certificate, CSA246A8MAT44379-24, is for Matter 1.0, certified Oct 22, 2024. The Matter version is the specification version on the certificate's ledger record.
Source: CSA Distributed Compliance Ledger, read Oct 19, 2026.
What Matter 1.0 added, and which devices use it →In-wall Wi-Fi smart LED dimmer from the radiant collection; needs a neutral wire and handles up to 150W LED or 300W incandescent/halogen loads. A screwless radiant wall plate is included.
Specifications
- Brand
- Legrand
- Category
- Switches
- Protocols
- Wi-Fi, Bluetooth, Matter
- Certificate ID
- CSA246A8MAT44379-24
- Certified
- Oct 22, 2024
- Certified model
- WWMRL51WH
- Certified software version
- 202408302
Certification covers the named model(s) and software version(s) listed. It does not verify firmware installed on a retail unit or current retail availability. View CSA model/software record
Ecosystem compatibility
Quick answers
- Is the Legrand radiant Smart LED Dimmer (WWMRL51WH) Matter certified?
- Yes. CSA Matter certificate CSA246A8MAT44379-24 covers model WWMRL51WH with software 202408302. The certificate does not establish the firmware on a unit you buy.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA246A8MAT44379-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Apple Home on a page we hold. Apple says an iPhone using iOS 18 or later can add Matter accessories to the Home app without a home hub. Apple’s Matter page lists lights among the accessory types the Home app supports.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) work with Google Home?
- Likely. It is Matter certified (certificate CSA246A8MAT44379-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Google Home on a page we hold. Google says you need a Matter-enabled hub device set up on your home wireless network before you can add Matter devices to Google Home. Google’s supported-device-types page lists the Dimmable Light type.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) work with Alexa?
- Likely. It is Matter certified (certificate CSA246A8MAT44379-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Alexa on a page we hold. Alexa needs a Matter-compatible Echo; Amazon says its Echo devices support “a subset of Matter 1.5 and lower device types”, so check that yours does.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA246A8MAT44379-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named SmartThings on a page we hold. SmartThings adds Matter devices through the SmartThings app and a Matter controller.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) work with Home Assistant?
- Likely. It is Matter certified (certificate CSA246A8MAT44379-24), so any Matter controller whose app supports its device type can add it. The maker hasn’t named Home Assistant on a page we hold. Home Assistant says: “Adding a new Matter device only works in the Home Assistant Companion app.”
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) use Thread or Wi-Fi?
- Wi-Fi. Its catalog record lists Wi-Fi, so it joins your Wi-Fi network and does not need a Thread border router. You still need your platform’s Matter controller.
- Does the Legrand radiant Smart LED Dimmer (WWMRL51WH) need a hub or a Thread border router?
- No hub of its own and no Thread border router: it joins your Wi-Fi network. You still need your platform’s Matter controller (a smart speaker, display, streaming box or hub), though Apple says an iPhone using iOS 18 or later can add Matter accessories without a home hub.
- When was the Legrand radiant Smart LED Dimmer (WWMRL51WH) Matter certified?
- The CSA certified it on Oct 22, 2024 (certificate CSA246A8MAT44379-24, software 202408302). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the Legrand radiant Smart LED Dimmer (WWMRL51WH)?
- MatterCatalog has verified store links for it at Amazon and Legrand. Check the current price, model and pack size at the store.
From this product’s catalog record, not hands-on testing. Editorial policy
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Legrand WWMRL51WH
CSA model/software record