After that everything went automatically. In the socket connection is established in an estimated 20-30 seconds.
So far, my router supplied one floor with wireless internet, now I can upstairs, garden and ground floor (router in the basement) WLan received virtually anywhere.
The lights can be switched off, it consumes 2.5 watts during operation (measured with Steckessgerät à la cheap brand).
It is easy to use, robust construction, smaller than it looks in the picture and is functioning properly.