Both rooms can be seen at the same time. By comparing the cabinets, using different sources of light, it becomes obvious how important light sources are for the way we experience the colours in the room. The differences of the colour qualities are greater than we would normally expect. In our everyday life, we have nothing to compare with. A panel indicates which light sources have been lit in the 2 cabinets.
Additional information is available on a computer screen.
Here e.g. the energy consumption and total running costs of the light sources are listed as well as their spectral compositions shown in diagrams.