How much depth do led ceilings and led panels require?

The luminaire requires a space of about 45mm from the finished surface, depending on the model. The led panel itself
is only 12mm thick, but the luminaire can be up to 25mm thick at the spring. Ballast
is 25-35mm thick, depending on the model. This means that plasterboard roofs are not
even on large panels (600x1200mm!). Mechanical
however, due to mechanical stress and common sense, the panel should not be installed directly
against the vapour barrier. A small 10mm space is not bad for ventilation either.
In practice, this means e.g. 48x48 studding + 13mm plaster is sufficient height