Case 15-2
The CFL: Coming Soon to a Light Socket Near You
In a nation with 4 billion light sockets, one light bulb per household can make a real difference. If every
U.S. household replaced one ordinary incandescent light bulb with a compact fluorescent lamp (CFL), the
energy saved would be enough to light 3 million homes. This single change would be the environmental
equivalent of taking 800,000 cars off the road and preventing 450 pounds of greenhouse gases from
reaching the atmosphere. Change a light bulb, help the planet, slash energy costs—sounds like a win-win
situation.
Yet since the CFL’s invention more than 30 years ago, it has been slow to catch on. Meanwhile, the
incandescent light bulb, which was commercialized more than a century ago, still accounts for more than
90 percent of all light bulbs sold in the U.S. Why have CFLs not been more popular?
• Higher price. One big reason that CFLs have not been big sellers is because each costs five to seven
times more than an incandescent light bulb does. A CFL can last up to twelve times as long as an
incandescent bulb does, and installing even a few will make a noticeable difference in a household’s
monthly electric bill. However, the initial outlay has discouraged many people from making the
switch.
• Not the same old light bulb. A second reason is that CFLs do not work as well as incandescent bulbs
do in certain circumstances, such as in fixtures outfitted with dimmers or in spotlights. Because the
two types of bulbs are not completely interchangeable, consumers have to do at least a little research
and possibly some experimentation to determine when they can and cannot install a CFL in place of
an incandescent bulb. Instead, most consumers stay with what they know and keep buying the same
type of bulbs they have always used.
• Still too new. Until very recently, few CFLs could be found on store shelves; those that were available
had to compete with rows and rows of incandescent light bulbs. And CFLs were rarely featured in
advertising. Despite some publicity, not everyone was getting the message about the CFL’s energy