TP-Link Tapo S505D Smart Dimmer Switch, Single Pole, Neutral Required
This switch is Matter certified (certificate CSA2519DMAT45295-24, certified Mar 22, 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 TP-Link Tapo.
Certificate data as of . Set-up steps and sources: Apple Home · Google Home · Alexa · SmartThings · Home Assistant
CSA Matter certified (certificate CSA2519DMAT45295-24). Uses Wi-Fi, so it needs no Thread border router, only your platform’s Matter controller.
At a glance: Matter certified: Yes, Mar 22, 2025 · Connectivity: Wi-Fi · Platforms: Amazon Alexa (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
- CSA2519DMAT45295-24, certified Mar 22, 2025
- Network & hub
- Wi-Fi; needs no Thread border router, only your platform’s Matter controller
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CSA Matter Certified
Certificate: CSA2519DMAT45295-24Matter 1.3 certificate
Its certificate, CSA2519DMAT45295-24, is for Matter 1.3, certified Mar 22, 2025. 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 →Certified software versions
The CSA ledger lists 2 certified software versions for the device on certificate CSA2519DMAT45295-24. The most recent is software 1.3.0, certified Mar 22, 2025, for Matter 1.3. That is the certificate this page shows.
- Software 1.3.0 · certified Mar 22, 2025 · Matter 1.3 · CSA2519DMAT45295-24 · this page's certificate
- Software 1.0.0 · certified Dec 29, 2022 · Matter 1.0 · CSA22473MAT40473-24
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 4488, product ID 514), read Oct 26, 2026.
TP-Link Tapo S505D Smart Dimmer Switch, Single Pole, Neutral Required is a smart switch, listed as connecting over Wi-Fi; it is CSA Matter certified on March 22, 2025 (certificate CSA2519DMAT45295-24).
Specifications
- Brand
- Tapo
- Category
- Switches
- Protocols
- Wi-Fi
- Certificate ID
- CSA2519DMAT45295-24
- Certified
- Mar 22, 2025
- Firmware
- 1.3.0
Ecosystem compatibility
Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.
Quick answers
- Is this switch Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA2519DMAT45295-24, certified Mar 22, 2025.
- Does this switch work with Apple Home or HomeKit?
- Likely. It is Matter certified (certificate CSA2519DMAT45295-24), 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 this switch work with Google Home?
- Likely. It is Matter certified (certificate CSA2519DMAT45295-24), 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 this switch work with Alexa?
- Likely. It is Matter certified (certificate CSA2519DMAT45295-24), 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 this switch work with Samsung SmartThings?
- Likely. It is Matter certified (certificate CSA2519DMAT45295-24), 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 this switch work with Home Assistant?
- Likely. It is Matter certified (certificate CSA2519DMAT45295-24), 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 this switch 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 this switch 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 this switch Matter certified?
- The CSA certified it on Mar 22, 2025 (certificate CSA2519DMAT45295-24). That is its certification date, not a retail release date, which MatterCatalog does not state.
- Where can I buy this switch?
- MatterCatalog has verified store links for it at Amazon and TP-Link Tapo. 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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Same CSA certificate, other catalog pages
These pages list a record with the same CSA certificate, CSA2519DMAT45295-24. Check the pack size and finish on each page.
- TP-Link Tapo Smart Dimmer SwitchWi-Fi · CSA certificate on file · US store link
For publishers: link to this certificate
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Tapo S505D
CSA certified