All types of fluorescent tubes give off ulra-violet light which can make items go yellow over time even led lights give off small amount of ulra-violet.
Are uv400 covers are degined to stop items going yellow. Ideally used were items are effected by lighting such as museums and important documents
A chart showing the wave length of the light.
A pls which has been coat to stop the ulta-violet light
covershield can put a coating a light bulb to stop the ulta-violet, items from going yellow over time