Cync Button Dimmer Smart Switch (Neutral + Traveler)
The Cync Button Dimmer Smart Switch (Neutral + Traveler) is Matter certified (certificate CSA24535MAT44008-24, certified Sep 19, 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 GE Lighting.
Certificate data as of . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA24535MAT44008-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Sep 19, 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
- CSA24535MAT44008-24, certified Sep 19, 2024
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
- Model number
- CSWDMBLK3T1/MSWF
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GE Lighting
Where to buy
1 store
GE Lighting
Direct, non-affiliate linkNotes
Direct link to GE Lighting's product page. Confirm the exact variant, current price and delivery at the retailer.
Check the model, region and pack size at the retailer. Prices and availability are confirmed there.
CSA model/software record
Certificate: CSA24535MAT44008-24Matter 1.3 certificate
Its certificate, CSA24535MAT44008-24, is for Matter 1.3, certified Sep 19, 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 1.3 added, and which devices use it →In-wall smart dimmer switch with customizable buttons for scenes and light groups, rated 450 W; requires neutral and traveler wires. Connects over 2.4 GHz Wi-Fi and Bluetooth with no hub.
Specifications
- Brand
- Cync
- Category
- Switches
- Protocols
- Wi-Fi, Bluetooth, Matter
- Certificate ID
- CSA24535MAT44008-24
- Certified
- Sep 19, 2024
- Certified model
- CSWDMBLK3T1/MSWF
- Certified software version
- 1.03.080
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 Cync Button Dimmer Smart Switch (Neutral + Traveler) Matter certified?
- Yes. CSA Matter certificate CSA24535MAT44008-24 covers model CSWDMBLK3T1/MSWF with software 1.03.080. The certificate does not establish the firmware on a unit you buy.
- Does the Cync Button Dimmer Smart Switch (Neutral + Traveler) work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA24535MAT44008-24), 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) work with Google Home?
- Likely. It is Matter certified (certificate CSA24535MAT44008-24), 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) work with Alexa?
- Likely. It is Matter certified (certificate CSA24535MAT44008-24), 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA24535MAT44008-24), 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) work with Home Assistant?
- Likely. It is Matter certified (certificate CSA24535MAT44008-24), 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) 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 Cync Button Dimmer Smart Switch (Neutral + Traveler) Matter certified?
- The CSA certified it on Sep 19, 2024 (certificate CSA24535MAT44008-24, software 1.03.080). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the Cync Button Dimmer Smart Switch (Neutral + Traveler)?
- MatterCatalog has verified store links for it at GE Lighting. 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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Cync Button Dimmer Smart Switch
CSA model/software record · Non-affiliate link