Kasa Smart Dimmer KS220 (US): what it works with

TP-Link · model KS220 · For the US and Canada

• Matter Unconfirmed
• Apple Home Yes
• Google Home Yes
• Amazon Alexa Yes
• SmartThings Yes
• Home Assistant Yes

Wi-Fi dimmer for a US wall box, no hub: the Kasa KS220 needs a neutral wire and single-pole wiring. TP-Link lists Apple Home, Google Home, Alexa and SmartThings as supported platforms, and Home Assistant supports it through its TP-Link integration. It dims 150 W of LED or 300 W of incandescent.

Checked against 5 sources on Oct 11, 2026

Ecosystem compatibility

“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, Bluetooth^[1],[3]

Hub required

No^[1],[3]

Local control

Yes^[4],[5]

Form

Wall switch^[1],[3]

Dimmer

Yes^[1],[3]

Needs neutral wire

Yes^[2],[3]

Gangs / channels

Single-pole only^[3]

• Radio: 2.4 GHz Wi-Fi only. TP-Link lists Bluetooth 4.2 for setup only.
• Hub: Connects straight to 2.4 GHz Wi-Fi; TP-Link's datasheet title says no hub required.
• Local control: Home Assistant's TP-Link integration talks to the switch directly on your network, not through TP-Link's cloud. HomeKit control also runs on the local network; TP-Link's guide says a home hub is only optional.
• Form: Replaces a standard wall switch and comes with a wall plate.
• Dimmer: TRIAC dimming; 300 W incandescent/halogen, 150 W LED.
• Gangs / channels: TP-Link's datasheet says it doesn't work with 3-way (multi-location) wiring.

Before you buy

• 2.4 GHz Wi-Fi only.
• Needs a neutral wire and does not support 3-way wiring.
• No Matter claim for the KS220; TP-Link's Matter dimmer is the separate KS225.
• LED loads are capped at 150 W.

Quick answers

Does the Kasa Smart Dimmer KS220 (US) work with Apple Home?

Yes. The Kasa Smart Dimmer KS220 (US) works with Apple Home directly. TP-Link lists Apple Home as a third-party platform. The user guide covers adding it in the Home app with its HomeKit code; a home hub (HomePod or Apple TV) is optional, for remote access. More smart switches for Apple Home

Does the Kasa Smart Dimmer KS220 (US) work with Google Home?

Yes. The Kasa Smart Dimmer KS220 (US) works with Google Home directly. Listed by TP-Link as a supported third-party platform. More smart switches for Google Home

Does the Kasa Smart Dimmer KS220 (US) work with Amazon Alexa?

Yes. The Kasa Smart Dimmer KS220 (US) works with Amazon Alexa directly. Listed by TP-Link as a supported third-party platform. More smart switches for Amazon Alexa

Does the Kasa Smart Dimmer KS220 (US) work with SmartThings?

Yes. The Kasa Smart Dimmer KS220 (US) works with SmartThings directly. Listed by TP-Link as a supported third-party platform. More smart switches for SmartThings

Does the Kasa Smart Dimmer KS220 (US) work with Home Assistant?

Yes. The Kasa Smart Dimmer KS220 (US) works with Home Assistant directly. Home Assistant's TP-Link Smart Home integration lists the KS220 as a supported wall switch. More smart switches for Home Assistant

Sources

1. KS220 — TP-Link manufacturer · accessed Oct 11, 2026
2. Smart Wi-Fi Dimmer Switch — Kasa Smart manufacturer · accessed Oct 11, 2026
3. KS220 Smart Wi-Fi Light Switch, Dimmer No Hub Required Remote Control — TP-Link manufacturer · accessed Oct 11, 2026
4. Smart Wi-Fi Light Switch, Dimmer KS220 - User Guide — TP-Link manufacturer · accessed Oct 11, 2026
5. TP-Link Smart Home - Home Assistant — Home Assistant ecosystem · accessed Oct 11, 2026

Official product page: www.tp-link.com