First, Pardon me if I am sending to the wrong forum here, as this is the best one I could relate to my subject.
My question is related to CCT and chromaticity coordinates. I am not a lightening expert, my organization has received an offer for a CFL Lamps from one of the vendors stating that the CCT value is 6700 or 6400K; however the report they submitted indicates that the color coordinates are x=0.3185, y=0.3470, u=0.1952, v=0.4785, and that CCT is 6118, I can see is that 6118 is far away from 6400, is this range acceptable and can we still call it 6400K? as I know, color coordinates for 6400 are x=0.313, y=0.337.
They also mentioned that color tolerance is 5.1976 if this information helps.
If you were advised about this situation, would you consider the lamp having 6400K or 6100K?