They note that "Chromaticity shift in the output light is one of the most
common failures in LEDs [...] [Chromaticity shift] is considered as
one of the most important measures of quality and is often studied and reported" (page 6) so it sounds like this could hardly be new info to the manufacturer.
https://www.researchgate.net/publication/330676601_Degradati...
They note that "Chromaticity shift in the output light is one of the most common failures in LEDs [...] [Chromaticity shift] is considered as one of the most important measures of quality and is often studied and reported" (page 6) so it sounds like this could hardly be new info to the manufacturer.