Switch had loose contact ... and since the return costs money ... I have it disassembled (am electrician) interior is nothing installed permissible, rigid wiring for the rotating socket contact (you can adjust the tilt), however, is without stop, ie the you can turn to the long wire inside is from. At worst blows that thing from (smoldering fire). Everything not approved in Germany and for good reason. Have installed new wires and glued the rotating mechanism. I made the switch only as mock it.