Compact Fluorescent
These lamps feature a narrow tube space (1/2 to 5/8 in diameter) that is
doubled back on itself and terminated in a plastic base. Compact fluorescent
lamps are small enough to replace incandescent lamps in diffuse source
applications and therefore bring the increased efficiency of fluorescent
technology to a much larger variety of fixtures. Lamps with an internal ballast
can be used in a typical incandescent socket. Other lamps use an external
magnetic or electronic ballast.
How does it work?
A fluorescent lamp is a gaseous discharge light source. Light is produced by
passing an electric arc between tungsten cathodes in a tube filled with a low
pressure mercury vapor and other gases. The arc excites the mercury vapor which
generates radiant energy, primarily in the ultraviolet range. This energy
causes the phosphor coating on the inside of the tube to fluoresce, converting
the ultraviolet into visible light.
Electrical Requirements
To start the lamp, a high voltage surge is needed to establish an arc in
the mercury vapor. Once the lamp is started, the gas offers a decreasing amount
of resistance, which means that the current must be regulated to match this
drop. Without regulation, the lamp would draw power unceasingly and would
rapidly burn out. By using a ballast the starting voltage is provided and the
subsequent flow of current to the lamp is controlled. Using a balanced
lamp/ballast system extends lamp life, increases energy efficiency, improves
color characteristics, and enhances luminous efficacy.
Phosphor Coatings
Fluorescent lamps offer more color options than any other lamp type. This
is due to the phosphor coating on the inside of the tube. Halophosphor is the
basic coating. Along with rare earth and triphosphor coatings a control over
the generation of red, green and blue is achieved. This has enabled the
development of high lumens per watt (LPW) lamps in a variety of color
temperatures that feature excellent color quality and provide spectacular
renditions of virtually all colors.
GoodMart sells a wide range of
compact fluorescent lamps.
Please make a selection from the list below to view available product types:
Twist Shape
Reflector Lamps
Globe Shape
"U" Shape Tube
Chandelier Style
Dimmable Lamps
Three Way
Standard Bulb Shape
Bullet Shape
2-pin Base
4-pin Base
2-4 Watt Compact Fluorescent
CFL Ballasts
TCX Base
Circline
Lamp Reflectors
Colored CFL Lamps