I wouldn't read too much into that, GT. V/L has always
grouped its fixtures into "families": Series 200, Series 300, VL1000 Series, et cetera; first depending on
power/data distribution, and later depending on application.
Still no ideas on what "
CCT" means?
I believe
CCT stands for Correlated
Color Temperature.
Here's a few informative (yet not 100% relevant) paragraphs taken from this link:
http://www.lrc.rpi.edu/programs/nlpip/lightingAnswers/fullSpectrum/claims.asp
"Full-spectrum light sources will not provide better visual performance than other light sources under most circumstances. Visual performance is the speed and accuracy of processing
achromatic information (e.g., black print on white paper) by the human visual
system. At the relatively high light levels typically found in schools and offices, visual performance is essentially unaffected by the spectral
power distribution of
the light source, so full-spectrum light sources are,
lumen for
lumen, no better than any other light source.
Lighting produced by full-spectrum lamps may be, however, perceived as providing brighter architectural spaces than other lamps (Boyce, 2002; Berman, 1990). Three factors may contribute to this
effect. First, full-spectrum light sources typically have a high correlated
color temperature (
CCT) of 5000K - 7500K. Lamps with higher
CCT values produce greater brightness perception than lamps with lower
CCT of the same
luminance. Second, most full-spectrum light sources have high color
rendering properties, meaning that surface colors will appear more saturated. Greater saturation will also give the impression of greater brightness (Boyce, 1977). Third, the ultraviolet (UV) radiation produced by some full-spectrum
fluorescent lamps has a fluorescing, brightening
effect on textiles and paper that have been treated with whitening agents. These combined effects on brightness perception may indeed have positive impact on building occupants, but greater perceived brightness can also be a liability, depending upon the expectations of the space's occupants (Veitch and McColl, 2001). "
Edit: Just noticed that there's a
WIKI article on this that you wrote. I'm confused!
