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Selasa, 29 April 2014

The Details About Commercial Hanging Fluorescent Light Fixtures

By Eloise Hewitt


Since the 1930s, the goal of providing longer work hours in commercial and industrial locations has been met, at least in part by the development of larger, brighter and more economical light sources. Commercial hanging fluorescent light fixtures are more costly initially, but the lower operating cost makes them a choice which should be considered by commercial enterprises. Although the hanging fixtures are very utilitarian, they can also be designed in a way that is aesthetically pleasing.

As with any other lighting source, the main reason for using fluorescent bulbs is to provide illumination. With large open spaces, the source of the illumination is often this type of lighting fixture. The chains or cords are utilized to bring the fixture closer to the worker or customer's level. Illumination is the best way to make products look attractive and to improve the workspace of employees during night shifts.

Using fluorescent fixtures offers several advantages. The cost of operation is much lower than for incandescent bulbs. The light tubes are inexpensive to produce. Ballast is the component which is more expensive. However, the tubes are long-lived. A range of colors are available, including everything from warm white tones to cool white. Use of the fixtures offers diffused lighting. The illumination is general and even. Unlike incandescent bulbs, there are no shadows created.

Although there are similarities between cold cathode tubes and hot cathode tubes, there are differences as well. In addition to these two major categories of fixtures, there is a third type. Electroluminescent bulbs are different from the other types. All three types operate under the principle of phosphors which are acted upon by electrons.

Of the three categories, the one found most often is a hot cathode. It consists of a glass tube containing an inert gas which is under low pressure. A hot cathode has a tungsten electrode located on each side of the tube. The ballast controls and regulates AC power to the electrode. Usually the standard size is four feet long. 40 watts of illumination is provided. Ballast is most likely to be the electronic type today. It is less costly to produce than the magnetic type.

The cold cathode lamp is also available. The main difference between it and the hot cathode lamp is the coating on the interior of the lamp. Originally this device was not intended as a light source. It also contains gas. The electrodes are attached to either end of the bulb.

Electroluminescent or EL lamps are also known as high field electroluminescent lamps. The term refers to the conversion of electrical energy into light without the need for heat. They use electric current directly through a phosphor to illuminate the space. These bulbs can be shaped in wire-styles or can be flat.

The lamps are made more attractive by adding decorative covers. The covers help to further diffuse the light and remove any glare or strong shadows. Although a long straight bulb is the most common style of lamp, it is being joined by other shapes and lengths in order to meet specific needs in the commercial area. For lower energy usage and functional lighting, the fluorescent lamps represent the best option.




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