Very functional solution, the ios app also shows the battery. Of course, it requires the hub and 2 batteries and you need to make holes in the electrical box to install it, but the service it provides is greater than these issues!! 5/5 then

Someone needs to buy the HUB in order for it to work as smart. At first, it didn't have the correct command in the Tapo app so you wouldn't know if the light was on or off; it showed what it wanted. After I did a restart of the HUB, since then it has been perfect and works flawlessly with Google Home so you can give voice commands to turn the light off or on. I installed 5 switches and for convenience, I named each one light 1, light 2, etc. You can give it commands even outside the house without being on the Wi-Fi network since you run the Tapo app on your mobile.

It shouldn't need batteries, maybe increasing the cost of it would be better. It doesn't have a low battery indicator

Good construction, at a good price. Quite easy installation. For me, the star is lost because it doesn't have at least an indication that it is in on/off mode. It would be very convenient, while now I have to check the lights or the app if it is in operation.

I bought the S210 (single switch) for testing and PoC to see if it's worth it.

So, on the positive side:
- The switch seems to be of good quality construction (I will return in a few months with updates)
- It works with the Tapo app and can be part of an automation that you can set up with just one or more Tapo devices.

On the negative side:
- It requires batteries (2xAAA) to work. Without batteries, the light doesn't even turn on.
- It requires the Hub to connect it to the App.
- If you have the standard plastic boxes, it requires drilling and 2 outlets for the screws to fit.

Other observations:
- There is no way to see on-demand how much battery is left (you can't even do it from the app).
- There is no indication of operation on the switch itself (if it's on-off).