VerdictAI
#5 in Best Smart Dimmer Switches

Kasa Smart Dimmer Switch HS220, Single Pole, Needs Neutral Wire, 2.4GHz Wi-Fi Light Switch Works with Alexa and Google Home, UL…

Best for

Best budget

Amazon rating

★★★★★4.6(34,775)

Amazon aggregate, one input among many in the Verdict Score

Verdict scoreGood
78/ 100

Current price

$16.99

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Updated May 18, 2026 · 1 min read

Kasa Smart Dimmer Switch HS220, Single Pole, Needs Neutral Wire, 2.4GHz Wi-Fi Light Switch Works with Alexa and Google Home, UL…

Sources behind this verdict

10 reviewers weighted by source trust

Methodology →

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

Across the reviewers we read, the Kasa HS220 is the consensus budget pick in the smart-dimmer category. It doesn't appear in the high-trust expert reviews we have signals for, but the volume of verified-purchase Amazon reviews (34,000+ at a 4.6 average) and the consistent tone in r/TPLinkKasa and r/HomeKit threads describe it as a no-hub Wi-Fi dimmer that mostly just works at a fraction of Lutron's price. An r/HomeKit owner who switched their whole house to Kasa called installation "super easy" with "excellent integration into HomeKit." The cons surface honestly in community signals.

What reviewers liked

  • Dramatically cheaper than Lutron or Leviton equivalents
  • No hub required
  • Strong Amazon volume signal and broadly positive community sentiment
  • r/HomeKit owners cite easy install and solid HomeKit integration

Where it falls short

  • Neutral wire required — won't work in many older homes
  • r/TPLinkKasa threads document Wi-Fi pairing friction
  • Dim fade reportedly not as smooth as Lutron's per r/HomeKit
  • No high-trust independent expert review surfaced in our signals for this specific SKU

Across the reviews

Synthesis · not our verdict

Across the reviewers we read, the Kasa HS220 is the consensus budget pick in the smart-dimmer category. It doesn't appear in the high-trust expert reviews we have signals for, but the volume of verified-purchase Amazon reviews (34,000+ at a 4.6 average) and the consistent tone in r/TPLinkKasa and r/HomeKit threads describe it as a no-hub Wi-Fi dimmer that mostly just works at a fraction of Lutron's price. An r/HomeKit owner who switched their whole house to Kasa called installation "super easy" with "excellent integration into HomeKit."

The cons surface honestly in community signals. The same r/HomeKit owner wished the fade action were smoother, multiple r/TPLinkKasa threads document Wi-Fi pairing hiccups during setup (router 2.4 GHz mode, app reset, hard reset cycles), and one r/TPLinkKasa user reported a single dimmer behaving erratically across hardware revisions. A neutral wire is required, ruling out older homes without one. None of these are deal-breakers at the price, but they're the kind of friction Lutron owners rarely describe.

For a single room, a rental, or a low-stakes deployment, this is what mainstream reviewers point shoppers toward.

Key specs

Source: Amazon listing
App-Guided Install
The Kasa or Tapo app guides you through step-by-step setup. Requires neutral wiring and 2.4 GHz Wi-Fi. Consulting an electrician is recommended if you’re unfamiliar with electrical wiring.
Control From Anywhere Turn electronics on or off from anywhere with your smartphone using the Kasa App (Compatible with Android and iOS)
Voice Control
Enjoy the hands-free convenience of controlling the lights in your home with your voice via Amazon Alexa, or Google Assistant. Perfect for times when your hands are full or entering a dark room.
Gentle Off
Tailor your lighting to fade on with a click of the switch or a double-click to gently fade off the lights while your child drifts off to sleep.
Advanced Scheduling and Timer
Use timer or countdown schedules to set your smart switch to automatically turn on and off while you're home or away. Enable Away Mode to randomly switch on and off to trick potential intruders. Dimensions without panel 4.13x1.71x1.74 in. (105x43.5x44.21mm)

What customers say

2 verified voices
The first device I installed and tested was a single HS220 version 2.0 dimmer (single pack). I noticed that I was getting random and ...
Supportingvia r/TPLinkKasa
Standard troubleshooting: Restart wifi router. Restarted phone. Restarted app. Change wifi router to 2.4 GHz only for setup.
Supportingvia r/TPLinkKasa

Trust tier reflects our editorial assessment of the source, not the individual quote. Hover for the rationale. See how we tier sources →

Video review

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Kasa Smart Dimmer Switch HS220” · Single Pole REVIEW!!!

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