As with any switch or outlet covers that use solid 14 or 12 gauge copper, do your best to keep the wires as far away as possible inside the box. as much as possible. Installing this panel is much easier when there are no wires trying to pry the panel out of the box. The plastic is transparent so you can see the devices inside and there are 2 squares on the bottom to allow the cables to stick out. I have used them for WiFi switches to control pool lights and the case works fine. Whether it is UV-resistant and does not fog up remains to be seen.