L.E.D.’s - What Are They & What Do They Do?

The term L.E.D. stands for Light Emitting Diode. Modern electronics relies heavily upon L.E.D. light bulbs. For instance, L.E.D.s transmit information from remote controls, are used in traffic lights, digital L.E.D. clocks, flashlights, and to form images on jumbo television screens.

L.E.D. light bulbs are miniature bulbs that do not use filaments to produce light. Therefore, the life of an L.E.D. is much longer than that of a regular incandescent bulb, because there is no filament to burn out. Incandescent bulbs also tend to be much larger in size due to the filament, which must be housed in a vacuum inside the bulb. L.E.D. light bulbs last as long as a standard transistor used in modern electronics, and are lit purely by the movement of electrons.

The simplicity and long life of the L.E.D. make its use very desirable for various technological applications. L.E.D. light bulbs are housed in a durable plastic rather than glass and perhaps most importantly, are much more efficient. In traditional incandescent bulbs heat is generated when activating the filament to produce light. This causes energy to be wasted on the production of heat rather than the production of light. In order to produce the same amount of light as an L.E.D., an incandescent bulb would have to work even harder. L.E.D. light bulbs save electricity and lower electric bills.

Despite this positive scenario, incandescent bulbs are tailored to home lighting and will continue to be used until affordable, household L.E.D. light bulbs are available. At present, L.E.D. light bulbs are expensive and recommended for low-light applications.

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