You need to be careful with what plugs you choose, though, because they each have, let's say, their own peculiarities.<p>For instance, their overvoltage protection might not align well with what the local regulations say. For example, in my region of EU, the upper voltage tolerances are such that 264V must trigger an instant poweroff, and also anything producing power must shut off if the average voltage over the last 10 minutes was 253V or more. However, TuYa sockets which pretty much are the only in-wall variety I was able to find on the local market, shut off at 260V. This tends to be somewhat problematic in an area saturated with PV installations, like the one I'm living in.<p>This problem is compounded by the fact that the reported measurements of sockets sitting on the same phase tend to differ quite a bit. Some sockets tend to overstate the voltage compared to neighboring sockets sitting on the same wires. Thus, they shut off when they think it's 260V, while it might just as well be 255V.<p>Just saying that if you put lots of those in your walls, you might suddenly find yourself in a need to prepare some automations to try and bring the sockets on once the voltage is back to normal. This particular variety of sockets won't come back on after the voltage drops.