Kasa Smart Switch KS205 (US): what it works with
TP-Link · model KS205 · For the US and Canada
- Matter Yes, over Wi-Fi
- Apple Home Via Matter
- Google Home Via Matter
- Amazon Alexa Via Matter
- SmartThings Via Matter
- Home Assistant Yes
The Kasa KS205 is a Matter-certified, single-pole Wi-Fi light switch for a US wall box, rated 15 A general use and 600 W incandescent. TP-Link lists Apple Home, Alexa, Google Assistant and SmartThings as platforms and says it needs no hub; Home Assistant supports it through the TP-Link integration. It needs a neutral wire.
Checked against 5 sources on
Ecosystem compatibility
| Platform | Works? | Details |
|---|---|---|
| Matter | Yes, over Wi-Fi | TP-Link lists the KS205 as Matter-certified. The CSA listing we found is titled "Kasa Smart Wi-Fi Light Switch" (Matter 1.0, firmware 1.0.0, certified 2023-01-04) and does not show the model number KS205, so the link to this exact model rests on TP-Link's statement.[1],[2],[3] Other Matter smart switches |
| Apple Home | Via Matter | TP-Link lists Apple Home next to its Matter certification, and Kasa's page covers setup in the Apple Home app. The user guide names Apple TV and HomePod as Matter controllers.[1],[2] |
| Google Home | Via Matter | TP-Link lists Google Assistant as a supported platform alongside Matter.[1],[2] |
| Amazon Alexa | Via Matter | TP-Link lists Alexa as a supported platform alongside Matter.[1],[2] |
| SmartThings | Via Matter | TP-Link's global KS205 page lists Samsung SmartThings alongside Matter; the US Kasa page and user guide don't mention it.[2] |
| Home Assistant | Yes | Home Assistant's TP-Link Smart Home integration lists the KS205; it needs TP-Link account credentials ("Model requires authentication"). Matter is also an option.[4] |
“Via Matter” means you add it with that platform's Matter controller instead of a brand skill or app. “Unconfirmed” means we couldn't find an official source either way. How we verify.
Specs that matter for setup
- Radio: 2.4 GHz Wi-Fi only; Bluetooth is for setup only, per TP-Link.
- Hub: TP-Link's guide says no hub is required for the Kasa app; it joins 2.4 GHz Wi-Fi directly. Matter setup needs a Matter controller.
- Local control: Home Assistant's integration talks to the switch on the local network (local polling, 5 s), though it needs TP-Link credentials to authenticate.
- Form: Replaces a standard wall switch.
- Dimmer: On/off switch, rated 15 A general use, 600 W incandescent or 1/6 HP motor.
- Needs neutral wire: The Kasa page says a neutral wire is required.
- Gangs / channels: TP-Link's US user guide calls it a standard single-pole wall switch. It doesn't say whether 3-way wiring works.
Before you buy
- 2.4 GHz Wi-Fi only; Bluetooth is for setup.
- Needs a neutral wire at the box.
- TP-Link does not say whether it works in 3-way setups.
- Home Assistant's TP-Link integration needs TP-Link account credentials for this model.
Quick answers
- Does the Kasa Smart Switch KS205 (US) work with Apple Home?
- Yes, through Matter: add it with Apple Home's Matter pairing. TP-Link lists Apple Home next to its Matter certification, and Kasa's page covers setup in the Apple Home app. The user guide names Apple TV and HomePod as Matter controllers. More smart switches for Apple Home
- Does the Kasa Smart Switch KS205 (US) work with Google Home?
- Yes, through Matter: add it with Google Home's Matter pairing. TP-Link lists Google Assistant as a supported platform alongside Matter. More smart switches for Google Home
- Does the Kasa Smart Switch KS205 (US) work with Amazon Alexa?
- Yes, through Matter: add it with Amazon Alexa's Matter pairing. TP-Link lists Alexa as a supported platform alongside Matter. More smart switches for Amazon Alexa
- Does the Kasa Smart Switch KS205 (US) work with SmartThings?
- Yes, through Matter: add it with SmartThings' Matter pairing. TP-Link's global KS205 page lists Samsung SmartThings alongside Matter; the US Kasa page and user guide don't mention it. More smart switches for SmartThings
- Does the Kasa Smart Switch KS205 (US) work with Home Assistant?
- Yes. The Kasa Smart Switch KS205 (US) works with Home Assistant directly. Home Assistant's TP-Link Smart Home integration lists the KS205; it needs TP-Link account credentials ("Model requires authentication"). Matter is also an option. More smart switches for Home Assistant
Sources
- Smart Wi-Fi Light Switch | KS205 — Kasa Smart manufacturer · accessed Oct 25, 2026
- KS205 | Kasa Smart Wi-Fi Light Switch, Matter — TP-Link manufacturer · accessed Oct 25, 2026
- Kasa Smart Wi-Fi Light Switch - CSA-IOT — Connectivity Standards Alliance certification · accessed Oct 25, 2026
- TP-Link Smart Home - Home Assistant — Home Assistant ecosystem · accessed Oct 25, 2026
- Kasa Smart Wi-Fi Light Switch, Single Pole KS205P3 (US) User Guide — TP-Link manufacturer · accessed Oct 25, 2026
Official product page: www.kasasmart.com