Narrow band phosphors (CRI90)
vs
Typical broad-band phosphor (CRI90)
https://www.rollitup.org/t/new-lights-new-spectra-and-some-high-light-strips.1067657/post-16859847
quote:
"...but if we used only one type of LED it would be CRI90 broad-band
because of the more balanced red spectrum...