| Quality of
light is determined by the relationship
between the color temperature of the light,
and the color rendering index. |
| The color
temperature indicates the appearance created
by the light source. The higher the color
temperature, the "cooler" the
color. |
| Typically,
color temperatures of 2000K -3000K create
a warm (yellow) appearance; above 4000K
are cool (blue) in appearance. Between 3000K
and 4000K are considered intermediate and
tend to be preferred. |
| Color rendering
index (CRI) rates a light source's ability
to render colors in a natural way, based
on a scale from 0 to 100. In general, light
sources with high CRI (80-100) will make
people and things look better than those
with lower CRIs. |