TP-Link Tapo Smart Switch, Single-Pole/3-Way/4-Way, Matter Compatible, Energy Monitoring, Neutral Wire Required, Works with Alexa, Siri, Google Home, SmartThings, UL Certified, 2.4GHZ Wi-Fi, Tapo S515

Easy Setup
This is a great product. I can now turn on and off my light from anywhere. It was very easy to set up and link it to the app. I have now changed out all of my switches. It also work very well with Alexa. Good quality product for the price. Make sure you turn off the power at the panelboard when hooking up the switch.

Great light switch, works easy with apple
Easy set up and works great!

Easy installation and works perfectly
I installed 3 Tapo smart switches. Me: DIY person. Easy to install and super easy to connect and set up on Tapo App.[Appreciated]. I replaced two modern lighting electronic timer switches that have tiny screens and are not easy to program. The Tapo smart switch has an easy menu to program off and on times making it a breeze to control porch and patio lighting. Installation tips: 1. if the switch you are replacing is a 3 way or 4 way unit, the Tapo works perfectly but needs to be installed in the primary switch junction box. You can easily determine this by testing for current in the “line” wire when the switch is turned off. It will retain current when the switch is on or off. If the current stops when the switch is off, then that is not the primary switch in your 3 or 4 way set up. The included instructions explain this as well. Tip 2: verify your existing wire function before removing and installing new Tapo switch. While there are code and industry standards, the previous installer may have deviated. This includes verifying the traveller wires, often one red and one black, but this can vary. Also, the line and load [load goes to light in this case] wires may both be black. A noncontact voltage tester or multimeter can be used to discriminate. Tip 3: take pictures of old switch wiring before removal. This can help if you forget the wire origin. I removed and installed one wire at a time to minimize mix ups. Tip 4: The old wires may have been stripped too long which can expose the conducting copper after installed in the Tapo. This is easily fixed by snipping off any excess copper wire. Tip 5: The Tapo switch includes a single switch plate. If you are installing into a multi- switch junction box, the reused 2 or 3 or 4 switch plate cover will probably not fit totally flush over the top section of the Tapo switch at the screw hole because the switch body plate is a little thicker than a regular switch. I remedied this by shaving off small amount of plastic on the back side of the switch plate cover. ( see picture). This allowed a flat and flush mount onto the wall. I used a box cutter to remove a tiny amount of the plastic. Tip 6: Use of a power screwdriver (not a drill) saves time when removing and installing the two long switch mounting screws. Good luck on your project. Tapo smart switches highly recommended.

Decent Smart Switch But Mixed Results if You Pick the Combined Version
The Tapo Smart Switch works okay — when used in a simple single-pole or basic 3-way setup, it performs decently. It pairs with Matter readily, responds to commands, and integrates with smart-home systems without too much fuss.However — using the “all-in-one” version (single-pole / 3-way / 4-way combined) is where I ran into trouble. It seems like mixing those wiring modes in one unit introduces complexity that makes installation finicky and causes unreliable behavior. In my case the switch sometimes mis-behaved or didn’t stay properly synced, which defeats the purpose of a “smart” setup when you expect consistency.If you need a switch for a straightforward setup and don’t over-complicate the wiring, this works as a basic smart switch. But for more complex wiring or 3-/4-way circuits, this combined model feels like “trying to do too much,” and you may encounter headaches.

Great for when we are away