Kasa HS220 Dimmer (US): what it works with
TP-Link · model Kasa HS220 · For the US and Canada
- Matter Unconfirmed
- Apple Home Unconfirmed
- Google Home Yes
- Amazon Alexa Yes
- SmartThings Unconfirmed
- Home Assistant Yes
A neutral wire is mandatory for the Kasa HS220, a US wall dimmer that joins 2.4 GHz Wi-Fi directly with no hub. TP-Link lists it for Alexa and Google Assistant, and Home Assistant's TP-Link integration names it and controls it over the local network.
Checked against 2 sources on
Ecosystem compatibility
| Platform | Works? | Details |
|---|---|---|
| Matter | Unconfirmed | The Kasa page does not mention Matter. A third-party Matter database ties a CSA certificate to the HS220 name but to part number KS225, so this model stays unconfirmed. Absence is not a no. |
| Apple Home | Unconfirmed | The Kasa page lists Alexa and Google Assistant only. |
| Google Home | Yes | Listed as working with Google Assistant.[1] |
| Amazon Alexa | Yes | Listed as working with Amazon Alexa.[1] |
| SmartThings | Unconfirmed | The Kasa page does not mention SmartThings. |
| Home Assistant | Yes | Home Assistant's TP-Link Smart Home integration lists the HS220 under wall switches; newer hardware versions need TP-Link account credentials to add.[2] |
“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
- Wi-Fi[1]
- Hub required
- No[1]
- Local control
- Yes[2]
- Form
- Wall switch[1]
- Dimmer
- Yes[1]
- Needs neutral wire
- Yes[1]
- Gangs / channels
- Unconfirmed
- Radio: 2.4 GHz only (802.11b/g/n).
- Hub: It connects straight to a 2.4 GHz network.
- Local control: Home Assistant's integration connects to Kasa devices on the local network without the TP-Link cloud (local polling); newer hardware versions need TP-Link account credentials once to add. The Kasa app itself goes through the cloud.
- Form: Replaces a standard wall light switch.
- Dimmer: Leading-edge (triac) dimming. Rated 150 W LED, 150 W CFL, 300 W incandescent; TP-Link advises checking your bulbs' dimming compatibility.
- Needs neutral wire: The Kasa page says a neutral wire is required.
- Gangs / channels: The Kasa page states no gang count or single-pole vs 3-way wiring. 100-120 V, 60 Hz, indoor use.
Before you buy
- Needs a neutral wire in the wall box.
- 2.4 GHz Wi-Fi only.
- Rated 150 W LED, 150 W CFL and 300 W incandescent; TP-Link advises checking that your bulbs dim with it.
- The Kasa app goes through the cloud; only Home Assistant's integration works locally, and newer hardware versions need TP-Link account credentials once to add.
- Apple Home, SmartThings and Matter are not stated for this model.
Quick answers
- Does the Kasa HS220 Dimmer (US) work with Apple Home?
- Not confirmed. We couldn't find an official source either way. The Kasa page lists Alexa and Google Assistant only.
- Does the Kasa HS220 Dimmer (US) work with Google Home?
- Yes. The Kasa HS220 Dimmer (US) works with Google Home directly. Listed as working with Google Assistant. More smart switches for Google Home
- Does the Kasa HS220 Dimmer (US) work with Amazon Alexa?
- Yes. The Kasa HS220 Dimmer (US) works with Amazon Alexa directly. Listed as working with Amazon Alexa. More smart switches for Amazon Alexa
- Does the Kasa HS220 Dimmer (US) work with SmartThings?
- Not confirmed. We couldn't find an official source either way. The Kasa page does not mention SmartThings.
- Does the Kasa HS220 Dimmer (US) work with Home Assistant?
- Yes. The Kasa HS220 Dimmer (US) works with Home Assistant directly. Home Assistant's TP-Link Smart Home integration lists the HS220 under wall switches; newer hardware versions need TP-Link account credentials to add. More smart switches for Home Assistant
Sources
- Kasa Smart Wi-Fi Light Switch, Dimmer HS220 — TP-Link (Kasa Smart) manufacturer · accessed Oct 21, 2026
- TP-Link Smart Home — Home Assistant ecosystem · accessed Oct 21, 2026
Official product page: www.kasasmart.com