Kasa Smart Dimmer Switch HS220 Review - Real User Insights

Name: Kasa Smart Dimmer Switch HS220
Brand: Kasa
Availability: InStock

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Kasa Smart Dimmer Switch HS220 Review - Real User Insights | Smarthomio

Works Well If...

You already use Kasa devices
Integrates well with existing Kasa smart home ecosystem
You have single pole circuit
Simple installation for single pole setups
You use Alexa or Google Assistant
Native voice control support without additional hub
You want affordable WiFi dimmer
Budget-friendly WiFi dimmer with good Kasa app ecosystem

Avoid If...

You lack neutral wire
Neutral wire required - will not work without it
You need true 3-way support
Officially single pole only - KS230 recommended for 3-way setups
You want HomeKit support
No HomeKit - Alexa and Google only
You need rock-solid reliability
Reports of sync issues and unresponsive switches

Real World Issues

General

Static noise and flickering when neutral wiring incorrect or shared with incompatible loads
JustAnswer Expert
Switch unresponsive and out of sync with app 50% of time for some users
User reviews
Bulky size may not fit in shallow electrical boxes
Best Buy Reviews
Conflicting reports about 3-way compatibility - officially single pole only
TP-Link Community

Common Complaints

Goes out of sync with app frequently
occasional
Cause: WiFi connectivity or firmware issues
Static noise with certain loads
occasional
Cause: Neutral wiring issues or incompatible bulbs
Bulky size
common
Cause: Hardware design - may not fit shallow boxes
No HomeKit support
common
Cause: Not Apple certified

Setup Pitfalls

Not verifying neutral wire

Dimmer will not function

Tip: Check for neutral wire before purchase

Installing in shallow electrical box

May not fit due to bulky size

Tip: Measure box depth, consider box extender if needed

Improper neutral connection

Static noise, flickering, or malfunction

Tip: Ensure neutral is properly connected and not shared with incompatible loads

Privacy & Cloud Dependency

Partially CloudLocal-only capable

Needs Cloud

Remote access, voice control, scheduling via app

Works Offline

Physical wall switch, local network API available

Data Collected

Usage data through Kasa app

Privacy Concerns

Kasa has local API for Home Assistant integration - better than fully cloud-dependent switches.

Performance at Scale

Performance Notes

Direct WiFi - no hub required. Works with LED and incandescent bulbs.

Known Limits

Single pole officially. Neutral required. 2.4GHz WiFi only.

Better Alternatives

Kasa KS230

If: Need 3-way dimmer support

Designed for 3-way setups with add-on switch

Lutron Caseta Dimmer

If: Need better reliability

Industry-leading reliability, no neutral required

Inovelli Blue Series

If: Want local Zigbee control

Zigbee-based, LED bar, better automation features

Is It Worth It?

You have single pole with neutral

Good value WiFi dimmer with local API support

You use Kasa ecosystem already

Consistent app experience with other Kasa devices

You need 3-way dimmer

Officially single pole only - get KS230 for 3-way

You want HomeKit

No HomeKit - consider Meross or Leviton

Frequently Asked Questions

Does it work with HomeKit?▾

No, only Alexa and Google Assistant natively.

Source: TP-Link Specs

Does it work with Home Assistant?▾

Yes, Kasa has local API that works with Home Assistant integration.

Source: TP-Link Community

Why is my dimmer making static noise?▾

Usually improper neutral connection or incompatible loads. Check wiring and try different bulbs.

Source: JustAnswer Expert

Does HS220 work in 3-way circuit?▾

Officially single pole only. For 3-way, TP-Link recommends KS230 instead.

Source: TP-Link Support

Does HS220 require neutral wire?▾

Yes, neutral wire required.

Source: TP-Link Support