As you most likely know about every European country has got its own switch boxes for installing flush-mount switches, outlets,...
Now some manufacturers don't seem to think this is enough... they market their own proprietary boxes!
I stumbled over this yesterday... I work for an electrical planning office and a work mate had some trouble with one project. The architect had specified a super low profile series of switches that needs special boxes. It can be mounted in regular 58mm round switch boxes, but the it protrudes pretty far from the wall. The manufacturer doesn't state this anywhere and the electrician put in regular boxes . Now they realized the switches and outlets don't fit... and the walls are extra hard exposed architectural concrete...
So it looks like in the future we're in for a lot of fun!
