3 Way Switch, HS210 KIT, Need Neutral Wire

[[Packaging]] This smart switch comes with two sets of switches. Each set includes two wire nuts, two mounting screws, snap-on face plate, wire labeling stickers, and the switch itself. [[Install]] Install is relatively straightforward. I was able to install these in a 3 way dimmer switch configuration and a 3 way configuration. For both, I made sure to install the smart switch at the switch with the hot wire from the main home circuit, rather than any hot wires coming from other switches in the setup. If you install in any of the switches after this first switch then I believe it won't work. Only one switch is needed - the other switches can stay dumb. This also works for a single pole switch (just wire one of the travellers). For the 3 way dimmer, the other switch is the dumb dimmer switch. It works fine after the install. For the 4 way switch, the intermediate switch is the four way and the last switch is another 3 way switch. I also didn't touch these and they worked fine. To find which switch is the first switch, I voltage tested the common wire on the switch (usually has a black screw, bottom right side of the switch when facing it) while operating the switches. The common wire for the first switch will never go to zero (when measuring between it and ground or using a line tester). In my house, this first switch was also usually in the largest gang outlets or near areas with lots of wiring. If your old switch has the wires inserted into a hole in the switch rather than screwed on the side, you have to find a small paperclip and stick it in the even smaller hole next to it. Then you can pull the wire out. The neutral and ground wires in the smart switch are permanently fixed to the smart switch. They can be wired into any existing bundles of neutral (white) and ground (exposed copper) wires in the outlet box. My outlet box had these already bundled together and secured using a wire nut. I just unscrewed the wire nut and added the cables from the switch. The remaining line/hot wire (black) and traveller wire connections are screwed onto the smart switch. There are no wires coming off the smart switch itself for these. I do not believe it matters which traveller wire goes to which terminal. Typically the traveller wires will be bundled into one sheathed wire in the outlet box, while the line/hot wire will be separate. My traveller wires were colored red and black. The traveller wires are screwed onto the top of the switch, and the line wire to the right side. I found the smart switches to be a lot larger than the dumb switches, but they do just barely fit into the outlet box. I had to chip away some drywall compound from my outlet boxes to get them to fit. If your outlet box is metal, you might want to insulate the traveller wire terminals, as I think they could contact the metal box. [[Operation]] Setup is very easy with the app. No QR codes to scan. Just go near the switch and follow the instructions in the app. It does not use Bluetooth either. It seems to search for a Wifi broadcast from the switch. For some of my switches I had trouble connecting the first time, but a retry, or reset of the switch (using a small button on the front of the switch) would allow it to work. Alexa integration is automatic once you link the Kasa phone app. The switch itself is not a toggle like a normal switch, but simply a clicky button. When off, a dim white ring lights up the switch. Below the switch are very small reset and restart buttons. Although I only have one switch per three way or four way setup, the app can still tell if my light is on or off. Finally, these have no delay. I have some Kasa smart plugs plugged into switched outlets. With these smart plugs, there is a slight delay when turning on the switch and waiting for the lights to come on. However, with the smart switches, there is no delay. I assume this is because the smart plugs actually lose power while the switch doesn't. [[Conclusion]] I am very happy with these switches. The setup and use is very easy. Install was very straightforward, even though I had not done any switch installs before. These are one of the cheapest smart switches on the market, but they perform excellently.

These 3 Way work. Now, I learned you don't "have" to put each one on the same circuit, so if you are okay going against the TP Link recommendation, since they come in pairs, you can put 1 on a plug and have it work, and put the other one on a different plug and name it separately, and BAM you have two 3 way circuits that are on your Alexa control (and Kasa App control etc). I do have some "4 way" switches.....and they area PAIN. I thought they were 3 way, and one of them I got to work (don't ask me how, ha) but the other I cannot. They have an extra wire, and it's a huge pain in the rump. In general, it's awesome though. I copied the review from the "smart plugs" as well, because all of the information is essentially the same, except for the install which for the switch you have to put in the wall switch (TURN OFF BREAKER< HA) and the plugs are just plug in and then the lamp or whatever goes in the plug. The switches you have to know how to wire in a replacement switch in the wall. I will say, these switches are much bigger than just a switch (inside the wall box). I've done other timer switch replacement, and that's the norm. The problem is a lot of these boxes have TONS of wiring stuffed into them. On a few, especially ones that have 3 or more switches in one long box, I've had to pull all of them and trim wires to make them fit. I didn't trim where they weren't workable, but I did get a ton of the excess removed. These plugs work....that’s it, they work. All of the TP Link smart home plugs and Switches work, and work flawlessly that I can see. The Kasa app is great, works flawlessly as well. I have 8 of these so far, and they are mixed in my home with wall switches (TP Link switch and 3 way switches) to all run with Kasa app that is TP link that then works with the Alexa Amazon Echo's throughout the home. These things are truly plug and play. You plug them in, open the Kasa App, and "add device" and bam, it's super easy to follow the directions and add to WiFi in the home. Then open Alexa App on the phone and all of these TP Link items are there in the Smart Home section. It just works, and works flawlessly. The entire system, I add "Routines and Scenes" and you can do all kinds of cool things. In the Alexa App the Routines, I can turn on lights and play the weather on the Echo and then have it start music. I can say "Alexa, turn on the Accent Lighting" and it turns OFF the ones that I want off and don't think are accent, and turns on the ones I say to turn on, and it is super easy. The Kasa app also has timers as much as you want. You can set "turn on" and the time, and create as many as you want, and turn off the same. My Christmas lights indoor and outdoor were all on these indoors and the plugs for outdoors are on switches, so bam those all worked on timers there. Same with my patio outdoor lights. The "only" glitch I've had in the months of using these......I switched Broadband Providers from Uverse to Spectrum. The new WiFi router, I set up the SSID to the exact same, same password, and it "should" have all just connected and never had a glitch. After 2 hours of weirdness, and trying to reset one of them, and get the TP Link to work.....I spent more time online and realized these are 2.4Ghz ONLY. I had set up the 5Ghz Wifi to be the original. I went in and made the 2.4G the old one, and BAM, everything worked FLAWLESSLY again. So, the 5Ghz wave I made the SSID-5G and all was right with the world once again, ha. My wife said this was silliness......she also said that when I got our first DVR 20 years ago......now the DVR is full of HGTV.....and she admits these things are great.

I'm NOT an electrician. My electrical prowess is on par with someone who can accidentally cut clean through an extension cord with electric hedge trimmers, then break out the electrical tape and piecing the wires together to get it functioning again. The HS210 kit comes with 2 3-way switches that can be used in two separate “groups”. The switch that you are replacing HAS TO HAVE A NEUTRAL WIRE, not usually a problem for newer houses. If not, you can try looking at the other switch. If you are tackling this job, I can only assume you can follow the app and won’t burn down your house. The first switch that I upgraded was text book simple. I replaced both switches in a two-gang box to control two separate lights. Each switch had it’s own neutral wire and life was good. It was like putting together an IKEA table… there wasn’t much I could get wrong. The app is a great walk-through and makes an easy job easier, although, it will try and get you to use both of your smart switches to control one light. If you have read any of the other reviews, you know you only need one. Anyway, I move on to my second set of switch I want to replace… same scenario at a glance, but what lied beneath was vexing. When I took off the wall plate and labeled my wires, I noticed there was only one, what I assumed, group of neutral wires. After much time researching and a few incorrect wirings, I found out that if both switches go to a single fuse, you can use that neutral for both switches. The Kasa app works very well on my Android. In comparison to the Smart Life app, the Kasa app is much more reliable. The Kasa app controls my TP-Link brand switches/plugs and the Smart Life is used for my random smattering of no-name brand switches/plugs. The Kasa widget functions like it should while the Smart Life has a tendency to report switch status incorrectly and not toggle when I hit the button. The Kasa widget only has scenes that you can select where the Smart Life has individual switches/plugs. I don’t think I have had any issues with Google Home or Alexa controlling my TP-Link devices, but there have been issues where the Smart Life plugs don’t respond. Also when Google/Alexa are used to turn on Kasa scenes, it seems to work well, however the equivalent Smart Life Smart Scenes don’t seem work. Things I Learned From Install On a normal 2-way switch, the common wire is usually connected to a screw that is darker in color One neutral wire can be used for two switches if they are on the same fuse If you hook up a common wire to a TP-Link HS210 switch correctly, and what you thought was a neutral wire but actually another common wire, the switch glowing circle will light up briefly and then out. It only took twice for me to decide that I was doing something wrong. On the plus side, it didn’t burn out the switch or my house. Finally, if you have kids that are 3 inches way from the HS210 Smart Switch and are more than capable using the smart switch as an actual switch, they will inexplicably shout out to Alexa, who happens to be on the other side of the house, to turn off upstairs hallway lights.

I have a single-pole Kasa light switch that has been working flawlessly for years and that was a breeze to install, and I wanted to bring that ease to the three-way switches in my house. This three-way switch (for lights controlled by two different switches) should have been almost as easy. We knew we might be in trouble when the box contained no instructions and instead directed us to the in-app tutorial. Those in-app instructions just are not detailed enough and don’t contain trouble-shooting options. Once set-up, however, the light switch is great for non-dimmable lights. I love that I can tell Alexa to turn on the kitchen lights and that I can set up a schedule for when I’m away. Except for not being able to dim lights, the switch does everything that the Kasa light bulbs do. You must have a “common wire” to install this. Although neither my husband nor I knew what that was when we bought this, we also knew that our newer house had to be wired with one. As we discovered during an online search, the common wire is the white wire in the back of the electrical box that isn’t connected to anything. The other difficulty we ran into was how to figure out which wire went where since the electrician who wired our house used black wires except for the red travel wire. It was difficult to figure out which wire connected where. The package comes with two smart switches because you are expected to use one at each switch in the circuit. You can either use one in a single-way switch (a bit of wasted money) and one in a three-way, as long as you choose the correct switch to replace. You can also use one each in a three-way circuit, with the same caveats. I love the switches once installed, but TP-Link needs to provide better instructions. I can’t help thinking that they omitted detailed directions because they didn’t want to take responsibility for homeowner mistakes. But they are still selling a device that needs to be hard-wired. They should provide paper instructions, even if they are printed on tissue-paper-like paper the way you’d find in other home improvement devices. — Debbie Lee Wesselmann

Got the single switch on sale for $14.99. Excellent deal and value. From other reviews, I saw that the instructions were very easy to follow (they are provided in the app). I agree, though I may have misread something when setting up mine, because it originally wanted me to install two of them. Fortunately, this was not necessary and it works great to replace a single switch. In fact, my setup is a 4-way setup (3 switches). I figured I couldn't replace the "middle" switch, which is a 4-way, but this one worked great to replace the end switches (which are both 3-way). I was afraid I might need to replace the "lead" switch, but nothing in the instructions said this was needed, and it works great with the one I replaced. My house wiring wasn't done with the proper colors (travelers are supposed to be red wires, where one of mine is black)... but I know enough about wiring to figure that out. This switch has clear labeling to identify the traveler screws, so that made it easy. The white and green are wires coming out of the box, so those are easy. The only one left is the black, which is on a screw terminal. It was an easy install since I could remove the black on my existing switch, and then put the two travelers on, and then connect the white and green as usual. Everything worked great, app connected to wifi quickly and easily, and the indicators on the switch are a nice extra feature (to know that the wifi is connected). Would highly recommend this one, as the instructions were great, and the setup was flawless!

I've bought several variations of these from this brand. Simple reason, they just work all the time while there have been others, I've used work too, but only some of the time. Installation is quick and easy, plus unlike some others they do include a ground wire. Connecting with Alexa is no problem and automatic after initial setup. I'm pretty new to the Smart Home Game, have changed and updated my network a couple of times. That's where there are a couple of places where these excel with one being able to easily reset them. Another place that is a pretty big deal compared to some others is if you have a dual-band or tri-band network, you don't have to jump through hoops to get this to pick the 2.4GHz range. Some others that I have required turning off the 5GHz band to get them to find the network then I've just had to forget about getting consistent results after turning it back on. As far as fit, they fit perfectly in standard US junction boxes, don't get hot, look nice and as an added kicker, they're budget priced.

I ordered these switches after making the mistake of ordering a different brand that were a bit less expensive with a special package deal. Even though the other brand (TreatLife) was also well reviewed, I had nothing but issues with them and there was no tech support to speak of. I installed these switches and they are WONDERFUL. The 3-way switches have a mix of wire nut pigtails and screw terminals. The single pole switches are all wire nut connections. I prefer the screw terminals since they are cleaner and take up less space in the junction box. This is important since the switches are bigger than normal switches and real estate in the box can get very crowded. The only hit against Kasa is that the switches come with ZERO electrical documentation in the box. I didn't need it, but I can see how that would confuse some people. I believe that the installation instructions are all in the app, but that does not seem to be as handy as having them on paper. Not a big deal though. Hooking them up and replacing normal switches was a breeze. I did 3 different circuits in under 30 minutes. Two circuits were 3-way overhead lights and one was a single-pole switch for a ceiling fan. Pulled out the old switches, wired in these new smart switches and powered on the breaker. They worked on the first try. This should always be the case but I had the bad experience with the other brand where the 3-way switches did not work properly. It was very refreshing having these work so well. A few notes: 1) If you are installing the 3-way switches, you do NOT need to replace both switches on the circuit. That is why these switches need a neutral wire. It keeps them powered even when the lights are off, and thus act like any other 3-way switch. Just replace one of them. 2) You must have a neutral wire in the junction box. These switches will not work without a neutral wire. If you're not sure, remove the switch plate and look inside. If you can't tell, consult an electrician. Next step was to link with the Kasa app. I already had the Kasa app since I have an outdoor Kasa smart plug. I just went through the process of adding the switches and within 2 minutes the switch was connected to the Kasa app, Google Home, and Alexa. This was again in stark contrast to the TreatLife switches which did not connect well with WiFi. Kasa is a breeze and a joy to set up! Sure Kasa equipment may be a little more expensive than the other brands but they WORK and don't give me any headaches. That is worth the price. From now on it is all Kasa brand for me.

From a professional electrician's standpoint, evaluating smart home products is a matter of balancing technical functionality with practical installation. The Kasa Smart 3 Way Switch HS210 KIT is a great example of a product that gets this balance right, making it a reliable recommendation for clients looking to upgrade their lighting controls. The physical installation is surprisingly straightforward. The kit includes clear, color-coded wires and well-labeled terminals. The switch itself is a bit bulkier than a standard switch, so you need to be mindful of available space in the gang box, especially in older homes. However, the clear instructions and the fact that it doesn't require a dedicated hub simplify the process significantly. The Wi-Fi pairing is generally seamless, which is a huge relief on a job where you don't want to be troubleshooting network issues. Beyond the initial setup, the reliability of the switch is what matters most. The Kasa app is user-friendly for the client, which reduces my post-installation support calls. The switches maintain a stable Wi-Fi connection and respond quickly to commands, whether through the app or a smart assistant like Alexa or Google Home. The physical button on the switch provides a solid, satisfying click, ensuring it still functions perfectly even without network connectivity. In my opinion, the Kasa HS210 KIT offers excellent value. It's a robust, dependable smart switch that delivers on its promises without an overly complicated setup. For homeowners wanting to add smart features to their lighting without a professional-level network overhaul, this is a top-tier choice.

Easy wiring, easy wi-fi connection, and the product looks great after install. App is really easy to use too. I have 20+ units installed around my house, and they all work great. Motion sensor units work great, and the dimmer switches have memory, so the brightness level is always perfect. Only downside is the height of the switch. They don't fit inside older (80's) boxes very well. *** Just don't buy used switches *** Often they come damaged, or the incorrect switch is in the wrong box. Not worth the hassle of a few dollars.

Super facil de instalar y de configurar. Me gustan más este tipo de apagadores que los que los solo tactiles. Se siente de muy buena calidad. La aplicación es muy amigable y facil de configurar con Alexa y google. Cuando se nos va el internet y regresa no se desconfiguran y se vuelven a conectar rápido. El va y ven funciona perfecto con solo uno de estos interruptores y el otro el original.

We replaced a pair of old 3-way switches in our hallway with the Kasa HS210 kit and have been very happy with the result. Installation was straightforward for anyone comfortable with basic electrical work; the app walkthrough and wiring diagrams get you through it, though be careful;some homes use nonstandard wire colors so double-check which conductor is which before connecting anything. You do need a neutral in the box and the ground must be connected for the unit to power on. Once installed the switches work smoothly from both locations. Dimming is responsive and the fade on/off feels nicer than an abrupt flip for late-night hallway trips with the kids. The Kasa app is easy to use for schedules and remote control, and voice control via Alexa and Google Assistant integrated without fuss. We also tied the switches into SmartThings with no issues, which let us include the hallway lights in family routines like bedtime and morning wake-ups. One small note for owners of 4-way circuits: you typically only replace one intermediate switch; the app and documentation assume common wiring conventions so a bit of patience helps if your wiring differs. Overall the kit is reliable, well priced, and genuinely makes our daily lighting simpler for the whole family. Highly recommend if you want a practical, dependable smart lighting upgrade.

Excellent product, I had an existing KASA HS200 using since last 4 Years, little doubt when ordering but worked well in India. I am using this switch as one way switch for garden lighting. Most reliable product in this category.

Lo instalé con un switch normal, por error lo armé de manera equivocada pero la documentación del sitio web ayudó a corregirlo, es de buena calidad