Have I bought this lamp for the bathroom, but unfortunately I have the lamp again send back (What else). Reason: The Electrical design is flawed for me as an electrician, no ground contact, no IP certification and non-standard cabling. Ansich Beautiful lamp, but the bathroom is a no-go. So back in order, my guide was written in very bad German (Google Translated?). The lamp in the 7W version does not have a switch, the 3W version also does not go. No purchase recommendation from me.