What protection areas in the bathroom have to do with lamps.
Bathroom lighting is suitable for use in humid environments. They have to meet the protection and safety class that is required for the respective area. The individual protection zones in the bathroom are defined in DIN VDE 0100 part 701. Due to the dangerous combination of water and electricity in the bathroom installations of bathroom lamps should only be performed by a licensed electrician. There are three protection zones (0-2).