Task lighting is a great way to get a lot of light output for a specific area. This has been true for many decades and the
industry standard for task lighting in those years were the F20T12 fluorescent light bulbs.
F20T12 bulbs were the original fluorescent task light tubes, which are known as T12
bulbs. Sometimes they were also use in small 2x2 fixtures in older fixtures, but
they aren't available that way today. You can tell the difference between a T12 and a T8 by measuring the
diameter of the bulb. The F20T12 bulb will be 1 1/2 inch in diameter and 24
inches long, compared to 1
inch for the F17T8 bulb. The T12 is the standard cool white or warm white
lamp that's been used in offices throughout the world. As with all
fluorescent bulbs, they rely on ballasts inside of the fixtures in order to make
them work. Almost all fixtures for these bulbs
come with ballasts already mounted and wired. The ballast is important because
it is specific for each type of lamp. You can't change from one type of
fluorescent to another without changing the ballast in most cases.
On a rare occasion there may be a ballast that is made for several different
types such as in the case of T8 lamps. Most of the time the ballast in the lamp
are matched electrically and so it's good to make sure the ballast you have is
the right one for the lamp you choose. The F20T12 fluorescent light bulbs typically operates
on a magnetic ballast which is less efficient than it's electronic counterpart.
Look for this lamp commonly used in an office task lighting situation. The standard T12 types of fluorescents
don't always use these terms but sometimes are called by a certain color such as
"cool white" or warm white" or "daylight". So the
number you may see is something like F20T12CW, F20T12WW and F20T12D. You
may still be able to get these in a full spectrum version like a C50 type and
would be designated somewhere on the bulb as a 5000K.
With the advent of higher electrical costs, many businesses are looking for ways
to save energy with lighting. There are many choices in this area right
now and one of the most popular type of lamps are the F17T8 fluorescent light
with matching electronic ballasts. This combination has been a standard for
saving energy and many times has electric utility rebates associated with it.
Many times the ballast used for the F17T8 are interchangeable with the longer 4
foot version, the F32T8.
What makes him such a natural is that the sockets used for less efficient F20T12
lamps are exactly the same making it an easy retrofit. The very latest
enhancement to Sylvania T8 bulbs is the eco-friendly design. According to Sylvania,
"Ecologic is a comprehensive program focused on addressing environmental issues
at all stages of lamp life." They go on to say that bulbs in this category "are
designed to meet the Federal Toxicity Characteristic Leaching Procedure (TCLP)
criteria for classification as non-hazardous waste in most states." If you are
sensitive to the impact of hazardous material in the environment we live in,
then energy saving T8 bulbs from the Ecologic line are for you. If saving energy
while delivering minimum impact on our environment is your choice, then these
fluorescent bulbs are the right choice for you. It's not necessary to
retrofit your fixtures as the F20T12 fluorescent light bulbs are still readily
available today. They are still used in some consumer grade light fixture
products as well.
Because it's still very pervasive in many office environments across the
country, we make the F20T12 fluorescent light bulbs a substantial part of our
offering. There will probably never be a time when these will not be in use.
Remember that there are many types of fluorescent lighting, we describe some
of the most common used in commercial lighting here. The F20T12 fluorescent
light bulb is the old standard for task fluorescent lighting, look for it
stamped right on the side of the bulb itself. Whatever type of
fluorescent you choose or have, you will be saving energy while getting the
most light you can for your money. We have a large inventory of
fluorescent bulbs for nearly every type of light fixture in the field. If
you need help identifying the bulb you have, our customer service
representatives can help you determine what you have.