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)

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.

[[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.

Las funciones del interruptor me han dejado sorprendida. Conecta con Amazon Alexa sin complicación, únicamente asegúrate que la red wifi sea estable. Adicional, TPlink tiene una aplicación que conecta con sus productos donde se encontrarán más funciones y usos del interruptor. Fácil de instalar.

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.