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    What does one need to take into consideration when choosing a light source for art galleries and museums?

    It is important to compare the spectral power distribution of the light source (SPD), the Color Rendering Index (CRI), Correlated Color Temperature (CCT) and the Color Quality Scale (CQS) of the light source relative to the nature of exhibits / displays to be lit. The illumination level needed within the exhibition and the hours of operation also need to be considered. This is a specialist area, and proper set up of lighting reqiures the advice of a consultant such as the curator.