Linkind A21 Smart Bulb Color Changing
Matter support is claimed, but no CSA certificate is verified for this exact model. Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Not verified (Matter support claimed) · Connectivity: Wi-Fi · Thread border router: Not needed (uses Wi-Fi)
- Works with
- Apple Home, Amazon Alexa, Google Home and Samsung SmartThings (named by the maker)
- CSA certificate
- No CSA certificate on file
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
Independent guide. These are direct, non-affiliate links; we do not earn a commission from them. How our links work
Linkind
Where to buy
1 store
Linkind
2-pack
Direct, non-affiliate linkNotes
Direct link to Linkind's product page. Confirm the exact variant, current price and delivery at the retailer.
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.
Matter support claimed · certification unverified
Certification: not matched to a CSA certificate.
Linkind A21 Smart Bulb Color Changing is a smart light; Matter support is claimed, but no CSA certificate is verified for this exact model.
Specifications
- Brand
- Linkind
- Category
- Lighting
- Protocols
- Wi-Fi, Matter
Ecosystem compatibility
Quick answers
- Is the Linkind A21 Smart Bulb Color Changing Matter certified?
- Not verified. Matter support is claimed for it, but MatterCatalog has not verified a CSA certificate for this exact model.
- Which smart home platforms does the Linkind A21 Smart Bulb Color Changing work with?
- The maker’s own site names Apple Home, Amazon Alexa, Google Home and Samsung SmartThings. No CSA certificate is verified for this exact model, so confirm platform support with the maker.
- Does the Linkind A21 Smart Bulb Color Changing 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.
- Where can I buy the Linkind A21 Smart Bulb Color Changing?
- MatterCatalog has verified store links for it at Linkind. Check the current price, model and pack size at the store.
From this product’s catalog record, not hands-on testing. Editorial policy
Best Matter Smart Lights 2026
Buying guide to Matter smart bulbs, strips, and fixtures, compared from specifications and certification records.
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Other Matter lights in the catalog
Each with its Matter network, certificate status and US store status.
- Linkind Smart CCT Bulb - A19 Smart Light Bulbs (800lm)Wi-Fi · no CSA certificate on file · US store link
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- LIFX Everyday A19Wi-Fi · CSA certificate on file · US store link
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Linkind A21
Certification unverified · 2-pack · Non-affiliate link