sorry and macks
Alexandros.
From my research, the CRI does not seem to matter because sputniks have a lower CRI value but have a better colour render because they have looked at what the CMOS sensor of cameras pick up and only output that, unlike other units which may have a higher CRI but miss a lot of the spectrum out which means if part of the spectrum is not given out by the light then it will not be able to reflect back and there for that colour will not appear in you're image. Attached are some spectrums.