Kasa Smart 3 Way Switch HS210 KIT, Needs Neutral Wire, 2.4GHz Wi-Fi Light Switch works with Alexa and Google Home (HS210)
Quick take
The Kasa Smart HS210 kit turns a traditional 3-way setup into smart lighting you can control from your phone and with voice assistants. It is a good fit for stairways, hallways, and any room where one light is controlled from two switches. The main buying caveat is wiring, because it needs a neutral wire at the smart switch location.
Pros and cons
Pros
- Built for 3-way switching, useful for stairways and other two-location setups.
- Works with Alexa and Google Assistant for hands-free control.
- App-guided install and scheduling (timers, countdowns, and away-style behavior).
- UL certified and rated for 120V, 15A (up to 1800W).
Cons
- Requires a neutral wire at the switch you install the smart device in.
- Uses 2.4 GHz Wi-Fi, so it may not work if your network setup does not include 2.4 GHz.
- 3-way and 4-way wiring can be confusing, and the setup needs careful placement and traveler/common wire identification.
What buyers think
Buyer feedback is strongly centered on setup and day-to-day reliability. Many shoppers report that the HS210 kit “just works” when it is wired correctly for 3-way configurations, and they describe the app walkthrough as making installation more approachable. A recurring theme is that replacing the right switch matters, especially in 3-way and more complex multi-switch layouts, where travelers and the common (hot feed) need to be identified correctly. Some buyers also note limitations related to specific light loads, such as LEDs that may show slight dim behavior when switched off, which can be a wiring and load interaction issue rather than a general software problem.
What this smart switch kit is for
The HS210 kit is designed to replace traditional switches in a 3-way setup, meaning you can control one light from two wall locations. That makes it particularly useful for staircases (top and bottom), hallways, entries, and “house to garage” style routes where it is inconvenient to walk to a single switch.
Because the kit includes two smart switches made to work together, it is also the easiest path when you want the two wall locations to both be smart, rather than leaving one location as a regular (dumb) switch.
Key requirements you should check before buying
Neutral wire requirement
This kit requires neutral wiring at the smart switch location. If your existing switch box does not have a neutral conductor, your options may be limited (for example, you may need an electrician to add routing, depending on your home’s wiring).
2.4 GHz Wi-Fi only
HS210 connects to your home network over 2.4 GHz Wi-Fi. If your household has only 5 GHz connectivity enabled, you will likely need to configure 2.4 GHz on your router or use a network setup that provides it.
Voltage and load compatibility basics
It is designed for 120V systems and is rated up to 15A (1800W). It is an on-off-appropriate smart switch for typical lighting loads, but specific LED fixtures can behave differently (for instance, some users report faint illumination when off).
Setup experience and day-to-day control
Installation is the biggest variable with smart 3-way switches, because the goal is to map the switch’s common/hot feed and travelers correctly. Buyers consistently describe the app as providing a step-by-step walkthrough, which helps reduce guesswork during wiring and pairing.
Once installed, control is straightforward: turn lights on or off from anywhere using the Kasa app, and use voice control with Amazon Echo and Google Assistant. You also get scheduling features, including timer or countdown scheduling and an away-style option meant to add randomness to when lights turn on and off.
Pros and cons for different types of buyers
Best for
- People replacing an existing 3-way switch pair and want phone + voice control on the same light.
- Households using Alexa or Google Assistant and wanting a single-light workflow across two locations.
- Shoppers who prefer app-guided setup and want basic automation like schedules and away mode.
Who should avoid or think twice
- Buyers whose switch box does not have a neutral wire where the smart switch will be installed.
- Anyone who cannot provide 2.4 GHz Wi-Fi connectivity to the switch location.
- Shoppers who are uncomfortable identifying the common (hot feed) and traveler wires in a multi-switch circuit.
Is it worth it?
The HS210 kit is worth considering if you have a proper 3-way setup and can meet its neutral wire and 2.4 GHz Wi-Fi requirements. When the wiring mapping is correct, buyers report smooth operation and dependable control. The biggest “make or break” factor is not the app features, it is whether your electrical box and circuit configuration can support the smart switch placement without trial-and-error.
Price and availability
Check the current price and stock status on the retailer page before ordering, since smart-switch kits can fluctuate in cost depending on bundle type and promotions.
FAQ
Does the Kasa HS210 need a neutral wire?
Yes. The HS210 kit is intended for locations where a neutral wire is available at the smart switch.
Will it work with 5 GHz Wi-Fi?
No. It connects over 2.4 GHz Wi-Fi.
Is this a single switch or a kit?
It is a kit that includes two smart switches, made to work together for 3-way wiring.
What voice assistants does it support?
It works with Amazon Alexa and Google Assistant.
Can I use it in a 4-way switch setup?
Multi-switch layouts can be more complex than a standard 3-way circuit, and the correct smart switch placement matters. If you have a 4-way arrangement, confirm your wiring plan and which location(s) you will replace before installing.
Does it support scheduling or away mode?
Yes. It includes timer or countdown schedules, and an away-style behavior option intended to vary when lights turn on and off.
Specifications
| Product Title | Kasa Smart 3 Way Switch HS210 KIT, Needs Neutral Wire, 2.4GHz Wi-Fi Light Switch works with Alexa and Google Home, UL Certified, No Hub Required, White,2 Count (Pack of 1) |
|---|---|
| Category | Tools & Home Improvement > Electrical > Switches & Dimmers > Wall Switches > Light Switches |
| Brand | Kasa Smart |
| Manufacturer | TP-Link |
| Color | Original Version |
| Material | Polycarbonate |
| Item Weight | 0.22 Kilograms |
| Operation Mode | ON-OFF-ON |
| Current Rating | 15 Amps |
| Operating Voltage | 120 Volts |
| Contact Type | Normally Open |
| Connector Type | Plug In |
| Switch Type | Toggle |
| Terminal | Spst |
| Circuit Type | 1-way, 3-way |
| Mounting Type | Wall Mount |
| Actuator Type | Push Button |
| Number of Positions | 2 |
| Lower Temperature Rating | 32 Degrees Fahrenheit |
| Upper Temperature Rating | 104 Degrees Fahrenheit |
| Controller Type | Amazon Alexa, Android, Google Assistant, IFTTT, iOS |
| Control Method | App |
| Connectivity Protocol | Wi-Fi |
| Wattage | 1800 watts |
| Control Type | remote, voice |
| Compatible Devices | Amazon Echo, Google Assistant, Smartphone (Kasa Smart app) |
| Smart Home Compatibility | Smart Home Compatible |
Available variants
Color
- Original Version
- white
Size
- 2 Pack
- 1-Pack
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