Kasa Smart Dimmer Switch 2-Gang HS220-2: A Tidy Way to Smarten Up Two Lights at Once
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ScoredTwo light switches, one wallplate, zero communication between them — if that's your stairwell or hallway setup, you already know the annoyance. The Kasa HS220-2 fixes it by packing two independent smart dimmers into a single 2-gang faceplate instead of forcing you to jam two separate smart switches into a box that wasn't built for them.
What It Is
The Kasa Smart Dimmer Switch 2-Gang (model HS220-2) is a hardwired, in-wall smart dimmer built specifically for double-switch boxes — the setups where two physical switches share one wallplate. Rather than installing two separate smart switches, Kasa built a single unit that controls two circuits independently. It connects directly to your home Wi-Fi, no hub required, and works through the Kasa Smart app as well as Alexa and Google Assistant.
At $35.99, it sits at the affordable end of the smart-home spending range — not a splurge, just a practical fix for a specific and common wiring situation.
Who It's For
This is a targeted product, and that's the point. It's for:
- Homeowners with two switches in one box (stairs, entryways, kitchen/dining combos, dual overhead + accent lighting)
- Kasa/TP-Link households who want consistency with switches they already use
- Anyone who wants dimming, scheduling, and voice control without buying a hub or bridge
- DIYers comfortable with basic wiring (this requires a neutral wire, like most in-wall smart dimmers)
If you've only got a single switch to replace, the single-gang Kasa dimmer will save you money. This one is built for the double-switch scenario specifically.
Key Features & Specs
- 2 independent dimmer controls in one 2-gang faceplate — no shared circuits
- No hub required — connects straight to 2.4GHz Wi-Fi
- App control via Kasa Smart (iOS/Android), plus Alexa and Google Assistant compatibility
- Scheduling and away mode for basic automation without a smart home platform
- Standard dimming for compatible LED, incandescent, and halogen bulbs
- Requires a neutral wire — standard for smart dimmers, but confirm your box has one before buying
- Price point: $35.99, reasonable given it's effectively two smart dimmers in one install
Pros
- Solves the "two switches, one box" problem cleanly instead of cramming in two separate devices
- No hub or bridge needed — one less thing to buy or manage
- Works with major voice assistants out of the box
- Priced well for what amounts to two dimmers in one unit
Cons
- Requires a neutral wire, so it won't work in every older home — check your wiring first
- 2.4GHz-only Wi-Fi, standard for this category but a hassle on mesh networks that push devices to 5GHz
- Installation is a step up from plug-and-play smart devices; comfort with light electrical work (or hiring an electrician) matters
- As a 2-in-1 device, a fault in one dimmer channel likely means troubleshooting or replacing the whole unit, not just one switch
For the specific problem it solves — two dimmable circuits sharing one switch box — the Kasa HS220-2 is the smarter buy over two single-gang switches crammed into a space that wasn't designed for them. It skips the hub, keeps the cost down, and does exactly what it's built for without overreaching.
Before buying, confirm you have a neutral wire in the box — that's the single most common reason smart dimmers don't work out. If your wiring checks out, this is a straightforward, no-drama way to bring smart dimming to a double-switch installation.
Ready to see current pricing and availability? https://www.amazon.com/dp/B0D3KWJ61T?tag=thebenchtest-20&tag=thebenchtest-20
