Kasa Smart 3 Way Switch
- Light Switch
- 1800 watts
- Push Button
- 1-way, 3-way
- More reviewed than 80%
A practical way to bring smart control to a 2-switch staircase or garage light setup without learning 3-way wiring theory, provided both boxes have a neutral wire.
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How it ranks among the 10 light switches we track
4.6★ across 19,900 Amazon ratings, Bayesian-smoothed toward the category average.
19,900 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
2,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 10 light switches we track - how the scorecard works · full light switches data report. Confidence: high - strong rating volume and complete data.Updated 8 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Kasa HS210 KIT is a two-switch smart switch pack built to replace a traditional 3-way circuit, where two physical switches control the same light from separate locations such as a staircase or a garage entry.
Rather than requiring you to understand master versus auxiliary 3-way wiring, the Kasa app walks through pairing both switches so they stay in sync. Each switch still needs its own neutral wire and 2.4GHz Wi-Fi, so this kit is a wiring-compatible swap rather than a wireless add-on switch.
- 2-switch kit for 3-way circuits
- App-guided install and pairing
- Works with Alexa and Google Assistant
- Timer, countdown, and away-mode scheduling
Who it's for
Suited to anyone with an existing 3-way lighting circuit, commonly a staircase or a house-to-garage light, who wants both switch locations to gain app, schedule, and voice control. Not the right kit for a single-location switch, which only needs one HS200.
Strengths and trade-offs
Drawn from this product's published specifications.
- Replaces a 3-way circuit without wiring expertise
- App-guided pairing for both switches
- No hub required, connects directly to 2.4GHz Wi-Fi
- Scheduling and away mode included
- Both switch locations need a neutral wire
- 2.4GHz Wi-Fi only, no dimming
Performance notes
Both switches in the kit pair with each other through the Kasa app so either location can turn the light on or off and stay in sync, replacing the mechanical traveler-wire logic of a standard 3-way switch. Scheduling, countdown timers, and a randomized away mode apply across the pair, and each switch still needs its own neutral wire.
Specifications
| Brand | Kasa |
|---|---|
| Model | HS210 KIT |
| Dimensions & fit | |
| Item Weight | 7.8 ounces |
| Item Dimensions | 5.1 × 2.8 × 6.3 inches |
| Capacity & performance | |
| Upper Temperature Rating | 104 °F |
| Lower Temperature Rating | 32 °F |
| Power & efficiency | |
| Wattage | 1800 watts |
| Operating Voltage | 120 volts |
| Construction & materials | |
| Material Type | Polycarbonate |
| Contact Material | Copper, Brass |
| Color | Original Version |
| Compatibility & installation | |
| Mounting Type | Wall Mount |
| Compatible Devices | Amazon Echo, Google Assistant, Smartphone (Kasa Smart app) |
| Connectivity Protocol | Wi-Fi |
| Included components | |
| Unit Count | 2 |
| Included Components | HS210 (2) |
| Warranty & support | |
| Warranty Description | 2 years |
| Other details | |
| Actuator Type | Push Button |
| Circuit Type | 1-way, 3-way |
| Connector Type | Plug In |
| Contact Type | Normally Open |
| Control Type | Voice, App, Remote |
| Switch Type | Toggle |
| Number of Items | 1 |
| Number of Positions | 2 |
| Specification Met | UL |
| Current Rating | 15 A |
| Item Type Name | TPL-HS210 KIT |
| International Protection Rating | IP54 |
| Operation Mode | ON-OFF-ON |
| Part Number | HS210 KIT |
| Terminal | Spst |
Other Kasa light switches
How it compares
This product against the closest alternatives we track in light switches.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Kasa Smart 3 Way SwitchThis product | 4.6 / 5 | 19,900 | 4.7 / 5 |
| Philips Hue Smart Dimmer Switch RemotePhilips | 4.7 / 5 | 4,000 | 4.7 / 5 |
| Leviton 15 Amp, 120/277 Volt, Decora Rocker Single-Pole AC Quiet Switch, Residential…Leviton | 4.7 / 5 | 3,400 | 4.6 / 5 |
| Lutron Caseta 3-Way Smart Dimmer Kit; LED DimmerLutron | 4.7 / 5 | 3,000 | 4.6 / 5 |
| TP-Link Tapo Matter Smart Light Switch: Voice Control w/SiriTapo | 4.5 / 5 | 1,300 | 4.5 / 5 |
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Questions about the Kasa HS210 KIT
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is included in the Kasa HS210 KIT?
The kit includes two HS210 smart switches designed to work together in place of a traditional 3-way switch pair.
Does each Kasa HS210 switch need its own neutral wire?
Yes, both switch locations need a neutral wire along with 2.4GHz Wi-Fi coverage.
Can the Kasa HS210 be installed as a single-pole switch instead?
Yes, the listing notes it can be used as either a 3-way or single-pole switch depending on the circuit.