LED Lamps
LED lamps use light emitting diodes,(LEDs), as a source of light unlike other lamps that use electric filaments or gas.
Also known as LED bars or illumination, LED lamps are available in a variety of shapes and sizes.
There is the standard bulb shape with a large E27 Edison screw and smaller varieties such as a the one with a small Edison E14 screw shape among others.
As for the voltage, some lamps have a voltage as low as 12 V while 120 - 240 V lamps are also available.
LED lamps gained widespread use in the 1970s when their use as indicators in a variety of instruments.
These early LEDs were limited in output and could therefore not be used for lighting but served as a replacement for filament and neon lights which were then widely used for indicators.
As they last longer and run on lower voltage, LEDs were ideal replacements for the indicating lights previously used.
Another advantage of LEDs is that they do not need replacing and therefore the need for bulk stocks does not arise.
LEDs have continued to develop and in 1993 the Nichia Corporation developed the blue LED using gallium nitride.
This revolutionary product enabled the creation of white light by the combination of the light of separate LEDs - red, green and blue.
Advancements in the technology used to make LEDs is best appreciated when we observe the actions undertaken by the Sentry Equipment Corporation of Oconomowoc, Wis,.
In 2008, this corporation lighted its new factory almost exclusively with LEDs.
This entailed a cost three times higher than would have been the case if incandescent and fluorescent bulbs had been used but the cost will be recovered in two years from electricity savings and the fact that bulbs will not be replaced for 20 years.
Also known as LED bars or illumination, LED lamps are available in a variety of shapes and sizes.
There is the standard bulb shape with a large E27 Edison screw and smaller varieties such as a the one with a small Edison E14 screw shape among others.
As for the voltage, some lamps have a voltage as low as 12 V while 120 - 240 V lamps are also available.
LED lamps gained widespread use in the 1970s when their use as indicators in a variety of instruments.
These early LEDs were limited in output and could therefore not be used for lighting but served as a replacement for filament and neon lights which were then widely used for indicators.
As they last longer and run on lower voltage, LEDs were ideal replacements for the indicating lights previously used.
Another advantage of LEDs is that they do not need replacing and therefore the need for bulk stocks does not arise.
LEDs have continued to develop and in 1993 the Nichia Corporation developed the blue LED using gallium nitride.
This revolutionary product enabled the creation of white light by the combination of the light of separate LEDs - red, green and blue.
Advancements in the technology used to make LEDs is best appreciated when we observe the actions undertaken by the Sentry Equipment Corporation of Oconomowoc, Wis,.
In 2008, this corporation lighted its new factory almost exclusively with LEDs.
This entailed a cost three times higher than would have been the case if incandescent and fluorescent bulbs had been used but the cost will be recovered in two years from electricity savings and the fact that bulbs will not be replaced for 20 years.
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