Philips A21 Daylight
The Philips A21 Daylight is Matter certified (certificate CSA22388MAT40388-24, certified Dec 23, 2022). 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.
Certificate data: CSA ledger read . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA22388MAT40388-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Dec 23, 2022 · Connectivity: Wi-Fi · Platforms: Apple Home, Amazon Alexa, Google Home and Samsung SmartThings (listed in its catalog record, unverified) · 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
- CSA22388MAT40388-24, certified Dec 23, 2022
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
Updated : the last change to this page’s certification, platform or store facts.
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Amazon
Where to buy
1 store
These are different packages and selections, not like-for-like prices. Check condition, pack quantity, included accessories and model before buying. Prices and availability are confirmed at each retailer.
CSA Matter Certified
Certificate: CSA22388MAT40388-24Matter 1.0 certificate
Its certificate, CSA22388MAT40388-24, is for Matter 1.0, certified Dec 23, 2022. The Matter version is the specification version on the certificate's ledger record.
Source: CSA Distributed Compliance Ledger, read Nov 10, 2026.
What Matter 1.0 added, and which devices use it →Certified software versions
The CSA ledger lists 2 certified software versions for the device on certificate CSA22388MAT40388-24. The most recent is software v1.4, certified May 18, 2026, for Matter 1.4. The certificate this page shows covers software v1.0, certified Dec 23, 2022, for Matter 1.0.
- Software v1.4 · certified May 18, 2026 · Matter 1.4 · CSA262JNMAT52707-24
- Software v1.0 · certified Dec 23, 2022 · Matter 1.0 · CSA22388MAT40388-24 · this page's certificate
Certification covers each software version listed. It does not establish the software on a unit you buy.
Source: CSA Distributed Compliance Ledger, device record (vendor ID 4107, product ID 8528), read Nov 10, 2026.
Philips A21 Daylight is a smart light. It is listed as connecting over Wi-Fi. It is CSA Matter certified (December 23, 2022), 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.
Specifications
- Brand
- Philips
- Category
- Lighting
- Protocols
- Wi-Fi
- Certificate ID
- CSA22388MAT40388-24
- Certified
- Dec 23, 2022
- Firmware
- v1.0
Ecosystem compatibility
Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.
Quick answers
- Is the Philips A21 Daylight Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA22388MAT40388-24, certified Dec 23, 2022.
- Does the Philips A21 Daylight work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA22388MAT40388-24), 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 Philips A21 Daylight work with Google Home?
- Likely. It is Matter certified (certificate CSA22388MAT40388-24), 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 Philips A21 Daylight work with Alexa?
- Likely. It is Matter certified (certificate CSA22388MAT40388-24), 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 Philips A21 Daylight work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA22388MAT40388-24), 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 Philips A21 Daylight work with Home Assistant?
- Likely. It is Matter certified (certificate CSA22388MAT40388-24), 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 Philips A21 Daylight 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 Philips A21 Daylight 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 Philips A21 Daylight Matter certified?
- The CSA certified it on Dec 23, 2022 (certificate CSA22388MAT40388-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy the Philips A21 Daylight?
- MatterCatalog has verified store links for it at Amazon. 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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Philips A21 Daylight
CSA certified · 4-pack