lundi 5 mai 2014

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.

The purpose of fluorescent fixtures, just like the other types of bulbs is to provide illumination to working areas or commercial locations. The bulbs and fixtures are attached to chains or cords in order to drop the light source so it is closer to the work areas or customer areas in a factory or commercial establishment respectively. The right kind of illumination makes the products look more appealing. Better lighting reduces eyestrain for workers.

There are several benefits attained by using the lamps. They are the most energy efficient source for interior lights. The tubes are produced inexpensively, although the ballasts are not cheap. The lighting tubes have a very long life and there is a good choice of colors which are produced. These colors are in a range from cool white to warm white. The production of the light is diffused, making the lamps best for general, even lighting. There are no harsh shadows.

There are three major types of fluorescents. Cold cathodes and hot cathodes are similar. Electroluminescent bulbs are different in many ways, but all three types use phosphors excited by electrons, in order to create illumination.

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.

The third category of lights is called electroluminescent or EL. Alternatively, they are designated high field electroluminescent lamps. In this category of lamps, electrical energy is converted into lighting with no heat. The electrical current is run through phosphor, which illuminates the space. The form of EL bulbs can be produced in various ways.

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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