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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 Colour Rendering Index (CRI), Correlated Colour Temperature (CCT) and the Colour Quality Scale (CQS) of the light source relative to the nature of exhibits / displays to be lit. The illumination level on the exhibit and hours of operation also need to be considered. This is a specialist area and needs the advice of a consultant such as the curator.