Light panel or attachment spotlight for the shower

Hello, I am looking for a light fixture that I can install in my walk-in shower. As I understand it, the light must be operated with low voltage. First, you have to find something suitable. Where can I then install the transformer so that it can be accessed again?

As I understand it, the lamp must be operated with low voltage.

Who is standing behind you during the installation and forcing you to do that? As far as I know, it is even allowed according to VDE.

It depends on what is above, the structure of the floor slab and the position of the shower in the house. If there is an attic above the shower, which is not converted and there is no concrete ceiling, it would be relatively simple. Provided the cable is long enough.

Install junction box with transformer in the attic.

As I understood it, the lamp must be operated with low voltage.

Why should that be so? *clears throat....

Why should that be the case? *clears throat....

So that you don't get shocked with 230 V while showering. That's why. RCD or not. Running naked and dripping wet to the distribution board every time the RCD trips and then being left in the dark is nonsense. And even if very probably (not but: guaranteed!) no electrical health damages will occur, such an event can of course lead to fright, falling, injuries, or especially panic in children.