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News Room

News Room

Published on 15-06-2010
Light Emitting Diodes (LEDs), Lighting Up The Future

Light Emitting Diodes, or commonly called LEDs, is a semiconductor light source. They have been used today in various household products, from lighting, remote controls, DVD players, television screen even digital clocks. It was first introduced as a practical electronic components in 1962, only emitted low-intensity red light. Years of experiment made LEDs available across the visible, ultraviolet and infrared wavelength, with very high brightness and possible to be used in various kinds of lamps.

Comparing to other conventional lightings, LED lightings obviously use less energy. The LED lightings will last ten times longer, consuming 50% to 90% less energy used on constant basis. LEDs produce a long serving life. Typical lifetime tested is from 2,500 to 100,000 hours, but heat and current settings can extend or shorten this time significantly. With this advantage, LEDs are ideally used for hard-to-maintain fixtures such as exit sign lighting and pathway lighting.

Unlike incandescent bulbs, LED light bulbs don't have a filament that will burn out, don’t get too hot. They are illuminated solely by the movement of electrons in a semiconductor material, and they last just as long as a standard transistor. Regular conventional light bulbs may contain toxic, dangerous and explosive chemicals in them, even the energy saving ones. Some toxic even spread to the air. It is likely due to the lack of knowledge by people, who just throw the lamps away when they are damaged, not realizing the chemical toxic in the light bulbs.

LEDs can be made available in various colors, more than 16.7 million colors, including white light. They also produce no UV radiation and little heat, which make them ideal for illuminating objects, such as the work of art, that are sensitive to UV light. LEDs are highly durable, they feature no filament that can be damaged due to shock or vibrations. Other advantages of LEDs including their ability to light instantly, can be easily dimmed and low-voltage power which increase safety.

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