2.40m room height with spot lighting sufficient?

There are also lamps that achieve the same effect as recessed spotlights, but in the living area, in my opinion, are nicer. Then you also don't need to lower the ceiling. For example: [ATTACH alt="2020-07-16 14.01.42.jpg" type="full"]49451[/ATTACH] They can be rotated in all directions and thus reach different "angles".

Thank you very much in advance for the answers. A necessity exists only in the guest WC and entrance hallway, as new wastewater pipes are being installed there. It would simplify the routing of the electrical cables, but the main reason would have been the spotlights. What options are there for lighting large and small rooms?

If I were you, I would go to a big lamp store and see what is available. They usually offer advice as well. If money is no object, you can also involve a lighting designer...

Choose recessed spotlights in flat design. 24mm roof battens + normal drywall sheets are sufficient. So, no 40mm total.

I wouldn’t use recessed spotlights, but surface-mounted spotlights.

I have now temporarily screwed a few 24x48mm battens to the ceiling as a test. I think I could live with this height compromise for shallower and (slightly) more expensive spotlights. But, as is always the case with an older property, there is always something new. When attaching the battens, I noticed that the ceiling is a bit uneven. It has a bulge that slopes downward about 20mm over 2 meters. You can already see this somewhat with the battens. Now I am wondering: Can I screw drywall panels onto it without them being damaged in the long term? I am aware that the ceiling will not be absolutely even as a result.