TP-Link Tapo Smart Dimmer Switch
The TP-Link Tapo Smart Dimmer 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, TP-Link Tapo and Newegg.
Certificate data: CSA ledger read . 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 and Google Home (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
- Model number
- S505D
Updated : the last change to this page’s certification, platform or store facts.
Independent guide. We may earn a commission through affiliate links. Direct non-affiliate links are labeled. How our links work
Amazon
Compare prices
3 stores
TP-Link Tapo
2-pack
Direct, non-affiliate linkNotes
Direct non-affiliate link to TP-Link Tapo's US product page for Matter-Certified Single Pole Smart Dimmable Switch White, Tapo S505D (2-pack); GTIN 840030706318 equals this record's GTIN. Confirm the exact variant, current price and delivery at the retailer.
Newegg
2-pack
Notes
Affiliate link to Newegg's US product page for TP-LINK Tapo S505D Smart Wi-Fi Dimmer Light Switch, Matter Pack of 2; GTIN 840030706318 equals this record's GTIN. 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.
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 31, 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 31, 2026.
The Tapo S505D is a single-pole Wi-Fi dimmer switch for a standard wall plate that needs a neutral wire and a 2.4GHz network. TP-Link says it dims from 1% to 100% and has a fade on/off option. The Tapo app adds remote control, schedules and an away mode that turns lights on and off at random, and Tapo sensors can trigger it through Smart Actions.
Sources: TP-Link's US Tapo store page, read Oct 31, 2026; TP-Link's US Tapo store page (2-pack), read Oct 31, 2026.
Specifications
- Brand
- Tapo
- Category
- Switches
- Protocols
- Wi-Fi
- Certificate ID
- CSA2519DMAT45295-24
- Certified
- Mar 22, 2025
- Model
- S505D
- Firmware
- 1.3.0
Ecosystem compatibility
Unverified: listed in its catalog record, not confirmed by the maker; check exact controller support.
Quick answers
- Is the TP-Link Tapo Smart Dimmer Switch Matter certified?
- Yes. MatterCatalog matches it to CSA Matter certificate CSA2519DMAT45295-24, certified Mar 22, 2025.
- Does the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer 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 the TP-Link Tapo Smart Dimmer Switch?
- MatterCatalog has verified store links for it at Amazon, TP-Link Tapo and Newegg. 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 Switches 2026
Buying guide to in-wall smart switches and dimmers with Matter support, compared from specifications.
Read the full buying guide →
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Each has a US store link. Models on the same Matter network with a CSA certificate on file come first.
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Compare all 29: Matter dimmer switches and plug-in dimmers →All 125 Matter switches sold in the US →All Tapo Matter devices →
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 S505D Smart Dimmer Switch, Single Pole, Neutral RequiredWi-Fi · CSA certificate on file · US store link
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Tapo S505D
CSA certified · 2-pack