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Compact Fluorescent Basics
Fighting Fluorescent Phobia
The biggest misconception that still stigmatizes
fluorescent light sources pertains to their color
rendering. Many consumers still associate
fluorescent with having an unflattering green
cast. They are probably thinking of products
they’ve seen at the cool end of the spectrum,
or fluorescent lighting in institutional settings.
You can combat these negative associations
from fluorescent’s aesthetically impaired past
by educating your customers about lamp
color and color rendering.
The Color Rendering Index (CRI) is a rating
scale up to 100 that rates a light source’s
ability to accurately convey true color. Light
sources with a low CRI will make objects
and skin tones appear washed out and dull.
Lamps with high CRI ratings bring life to a
subject and make colors more vivid. Many
CFLs have CRI ratings that exceed 80, which
is considered excellent.
Lamp color, on the other hand, is based on a
color temperature scale with a measurement
called Kelvin. A warm color of light would be
in the 2000K to 3000K range and would make
reds, oranges and yellows more dominant.
Light sources with a color temperature in the
4000K range would feature more blue or
cool tones. The variety of color temperature
options and CRI ratings for fluorescent light
sources have improved dramatically thanks
to advances in the types of phosphors used.
So now your customers can see themselves
in their best light without sacrificing energy
savings.
Light Bulb
Anatomy
Tri-Phosphor
Coating
This mixture
converts ultraviolet
light into visible
light with superior
color rendition and
a high efficacy
averaging 60
lumens per watt.
Electronic
Ballast
These high-tech
devices enable the
lamp to light up
immediately with no
flickering or noise.
Solid-state circuitry
allows for three-way,
dimmable and
photocell models.
FLUORESCENT
How it works: Fluorescent lamps are phosphorous-
coated tubes filled with a low-pressure mercury
vapor. Light is produced by passing an electric arc
between tungsten cathodes at opposite ends of the
tube. This causes the mercury vapor to generate a
radiant energy.
Compact
Fluorescent
Tube
An alternative to
traditional linear
tubes, these
smaller-tubes
have been
configured into
new shapes to
reduce their size
and increase their
light output.
What Is Energy Star?
Celebrating its 10th anniversary this
year, Energy Star
®
is a government-
backed symbol for energy efficiency,
jointly managed by the U.S.
Environmental Protection Agency (EPA)
and the U.S. Department of Energy
(DOE). The label was created to help consumers easily
identify products that save energy and help to protect
the environment.
Energy Star manufacturer partners may place
the label on products that meet the high energy
efficiency guidelines of the program. To keep up
with technological advances, Energy Star reviews the
guidelines for each product category and tightens
them as necessary to ensure that, generally, only the
top 25 percent of products in each category can earn
the label.