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LinkindLighting

Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack)

The Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) is Matter certified (certificate CSA252C2MAT45588-24, certified May 21, 2025). 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 Linkind.

Certificate data as of . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant

CSA Matter certified (certificate CSA252C2MAT45588-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.

At a glance: Matter certified: Yes, May 21, 2025 · Connectivity: Wi-Fi · Platforms: Samsung SmartThings (listed in its catalog record, unverified) · Thread border router: Not needed (uses Wi-Fi)

Works with
Matter certified as an extended color 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
CSA252C2MAT45588-24, certified May 21, 2025
Network & hub
Wi-Fi; needs no Thread border router, only your platform’s Matter controller

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Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) Matter device
Price at retailer

Amazon

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2 stores

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Amazon

See price at Amazon

Linkind

4-pack

See price at Linkind
Direct, non-affiliate linkNotes

Linkind's 4-pack. The same page also sells 2-, 8- and 12-packs; confirm the pack, current price and delivery at Linkind.

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.

The Linkind Matter Smart Bulb A21 1600LM 100W Equivalent (4-Pack) is a Matter-certified lighting bundle that supports Apple Home, Amazon Alexa, Google Home, and Samsung SmartThings for reliable local smart home control.

Wi-FiMatter

Specifications

Brand
Linkind
Category
Lighting
Protocols
Wi-Fi, Matter
Certificate ID
CSA252C2MAT45588-24
Certified
May 21, 2025
Firmware
3.00.00

Ecosystem compatibility

Matter
SmartThingsUnverified

Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.

Quick answers

Is the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) Matter certified?
Yes. MatterCatalog matches it to CSA Matter certificate CSA252C2MAT45588-24, certified May 21, 2025.
Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) work with Apple Home or HomeKit?
Likely. It is Matter certified (certificate CSA252C2MAT45588-24), 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.

Add a Matter device to Apple Home

Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) work with Google Home?
Likely. It is Matter certified (certificate CSA252C2MAT45588-24), 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 Extended Color Light type.

Add a Matter device to Google Home

Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) work with Alexa?
Likely. It is Matter certified (certificate CSA252C2MAT45588-24), 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.

Add a Matter device to Alexa

Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) work with Samsung SmartThings?
Likely. It is Matter certified (certificate CSA252C2MAT45588-24), 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.

Add a Matter device to SmartThings

Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) work with Home Assistant?
Likely. It is Matter certified (certificate CSA252C2MAT45588-24), 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.”

Add a Matter device to Home Assistant

Does the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) 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 Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) 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 Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack) Matter certified?
The CSA certified it on May 21, 2025 (certificate CSA252C2MAT45588-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
Where can I buy the Linkind Smart Bulb A21 1600LM 100W Equivalent (4-Pack)?
MatterCatalog has verified store links for it at Amazon and Linkind. 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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Linkind A21

CSA certified

Check price at Amazon