Kasa Smart Dimmer Switch HS220P3 (3-Pack): A Practical Way to Smarten Up Your Lighting

You don't need to replace every bulb in your house to get smart lighting — you just need to replace the switch. That's the whole pitch behind the Kasa Smart Dimmer Switch HS220P3, sold in a 3-pack that makes it easy to upgrade several rooms in one go instead of piecing together single-unit orders.

What It Is

The HS220P3 is an in-wall smart dimmer switch that physically replaces your existing wall switch — it's not a smart bulb or a plug-in adapter. It works with standard dimmable LED, incandescent, and halogen bulbs, and connects directly to your home Wi-Fi, so there's no hub to buy or manage. Once installed, you control it through the Kasa app, a voice assistant, or the physical switch on the wall, same as before.

Because it replaces the switch rather than the bulb, it works with whatever fixtures and bulbs are already in the room — no special smart bulbs required.

Who It's For

This one makes the most sense for:

• Homeowners or long-term renters comfortable with basic electrical work (or willing to hire an electrician for a quick job), since installation means wiring at the switch box.
• People upgrading multiple rooms at once — the 3-pack is built for that, and it typically works out cheaper per-unit than buying single switches separately.
• Anyone who wants scheduling and remote control without going all-in on smart bulbs, which cost more and can be finicky with dimming.
• Alexa or Google Home households who want voice control over the lights they already have.

It's probably not the right fit for renters who can't modify wiring, or anyone looking for a no-tools, no-wiring solution — a smart plug or smart bulb would be the better starting point there.

Key Features & Specs

• In-wall installation — replaces a standard single-pole dimmer switch (neutral wire required, which is standard in most homes built after the mid-1980s).
• App control via Kasa — dim, schedule, and set routines from your phone.
• Voice assistant compatible — works with Amazon Alexa and Google Assistant for hands-free control.
• No hub needed — connects straight to 2.4GHz Wi-Fi.
• Physical switch stays functional — you can still dim manually at the wall if your phone's not handy.
• 3-pack format — built for outfitting several rooms in one purchase, which usually brings the per-switch cost down versus buying individually.

At $44.94 for three switches, this lands in the budget-friendly range for smart home upgrades — roughly $15 per switch, competitive for an in-wall smart dimmer with no subscription or hub requirement.