First of all, I have never exchanged a socket, I have no experience as an electrician. I bought one of these to see how easy it was to install. Installed it was very easy. Also smaller than the other two USB sockets I tried. That's good because there were a lot of extra cords in my outlet. I was very happy with them and ordered 20 more to upgrade most of the outlets in my house. Unfortunately, I found that the USB ports are not working properly. When you plug the cable into an outlet for the first time, they will charge normally. But if you leave the lightning cord in an outlet next to your bedside table, e.g. For example, leaving it unplugged all day and then plugging your phone into it overnight will not charge it. It's like the outlet goes to sleep or something. I had to unplug/plug the USB cable every night for it to work. My wife and I have gone insane so they're coming back. Unfortunately, because I was very satisfied with all other aspects.