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Kasa Smart HS220 Single-Pole Smart Dimmer Switch1 / 7
Product guide

Kasa Smart HS220 Single-Pole Smart Dimmer Switch

Kasa Smart HS220 is a Wi-Fi dimmer switch for single-pole lighting circuits, with brightness adjustment through the switch or Kasa app. It also supports voice control through Alexa and Google Assistant, but installation requires a neutral wire and 2.4 GHz Wi-Fi.

At a glance

  • Adjust brightness from the switch or Kasa app, with manufacturer-stated 0%-100% dimming.
  • App features include remote control, schedules, scenes and Away Mode.
  • Supports voice control through Amazon Alexa or Google Assistant.
  • Manufacturer states a 2-year warranty and free 24/7 technical support.
Price
$18.99Save 30%

Reference price: $26.99

Price checked: Nov 12, 2026

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Pros and cons

Pros

  • App and voice controls complement the physical dimmer, with scheduling and remote access listed.
  • The listing identifies dimming for LED lights and brightness adjustment from 0%-100%.
  • Customers report positive experiences with installation, app setup, connectivity and dimming.

Technical specifications

24 specifications
Identity and electrical details
BrandKasa Smart
ModelHS220
Switch typeDimmer
Circuit type1-way
Operation modeON-OFF
Current rating3 A
Wattage300 watts
TerminalSpst
Contact typeNormally Closed
Actuator typePush Button
Number of positions2
Connectivity and controls
Wireless connection listedWi-Fi
Control methods listedVoice
Compatible devicesAlexa, Google Home
Control typeBrightness Control
Dimensions and installation
Mounting types listedPole
Dimensions listed45 x 85 x 128 millimeters
Weight listed109 g
Connector typePlug In
Materials and protection
Material listedPolycarbonate
Contact materialCopper
International protection ratingIP00
Specification metUL
Upper temperature rating104 °F

What to know before buying

  • Installation is for a single-pole circuit only. The switch requires a neutral wire, 2.4 GHz Wi-Fi and a standard lighting wall box at least 2 inches deep. The listing also names iOS 10+ or Android 5.0+ for the Kasa app.

Listing details to confirm

The listing calls this a dimmer while also giving operation mode as ON-OFF and connector type as Plug In, so those technical details do not clearly align with the single-pole in-wall installation description. Confirm the selected HS220 configuration and wiring compatibility before purchase.

What’s in the box

Included
  • HS220

Who is it for?

A good fit for

  • People replacing a dimmer on a single-pole circuit who have a neutral wire and compatible 2.4 GHz Wi-Fi.
  • Buyers who want app brightness control, schedules or Alexa and Google Assistant voice control.

Less suited to

  • Three-way lighting circuits, which the listing excludes.
  • Installations without a neutral wire, 2.4 GHz Wi-Fi or a lighting wall box at least 2 inches deep.
Kasa Smart HS220 Single-Pole Smart Dimmer Switch · photo 2
Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 25,312 ratings
  • 5 stars74%74%
  • 4 stars15%15%
  • 3 stars5%5%
  • 2 stars2%2%
  • 1 star4%4%

Customer feedback reports positive experiences with installation and setup, app usability, Alexa and Google Home connectivity, and dimming. The listing supports those uses with app and voice controls, but the feedback also describes mixed views about durability and timer functionality. A generally favourable aggregate rating does not settle those individual concerns.

Positive themes

  • Customers report easy installation and setup, positive app experiences, and good connectivity with Alexa and Google Home.
  • Customers also report favourable experiences with the dimming feature.

Mixed feedback

  • Customer feedback is mixed on durability and timer functionality.

Frequently asked questions

Does the HS220 work in a three-way circuit?

No. The listing specifies single-pole operation only and directs buyers seeking a three-way setup to a different model.

What does installation require?

The listing requires a neutral wire, a 2.4 GHz Wi-Fi connection and a standard lighting wall box at least 2 inches deep.

Can I control brightness from my phone?

The manufacturer states that brightness can be adjusted using the Kasa app or the switch. The listing describes a 0%-100% dimming range.

Which voice assistants are listed?

The product listing names Amazon Alexa and Google Assistant.

Kasa Smart HS220 Single-Pole Smart Dimmer Switch · photo 3
Additional product photo 3

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