In the socket any installation and operating instructions is mitgliefert. You do not need too. One needs only a 100 mm drill bit and three screws for the fixation of the counter frame. Drill a hole, inserting, from below Screw the counter frame, this fix with 3 screws and finished. At the outlet is a safety plug with sufficiently long cables, so you have this plug only into a socket, finished. A star deduction I have to give, unfortunately, since the withdrawal of the outlet is not particularly smooth. You have to really use force or from below against the bar so you press the socket gets undamaged high partly already. The visuals are great however. I'm curious how the chromed plastic looks after a few months / years.