Reply To: cumulative LED lighting damage – no UV or IR output, or low?


While UV is the most damaging part of the spectrum, and the heat (IR) from hot light sources can also cause damage, visible light can cause considerable damage to light-sensitive material. Fading of documents is certainly a major concern. There are some works on paper that are not especially light-sensitive (e.g. where the image is created with carbon-based ink), but in general works on paper should not be placed on extended (or permanent) exhibition.