Foto: "<a href="https://ccnull.de/foto/fixing-the-white-plastic-case-of-the-socket-on-the-wall-of-the-room-finishing-work-on-replacing-the-electrical-socket/1084948" target="_blank">Fixing the white plastic case of the socket on the wall of the room, finishing work on replacing the electrical socket</a>" von <a href="https://ccnull.de/fotograf/marco-verch" target="_blank">Marco Verch</a> via <a href="https://ccnull.de" target="_blank">ccnull.de</a> - <a href="https://www.flickr.com/photos/30478819@N08/51110507293/" target="_blank">Bildquelle</a>, <a href="https://creativecommons.org/licenses/by/2.0/de/" target="_blank">CC-BY 2.0</a>