A Light Emitting Diode also called "LED" is basically a semi-conductor light source. An LED is turned ON by forward biasing the diode. When a diode is forward biased, the holes combine with electrons which causes the energy to release in the form of photos. The size of an average LED is around 1 millimeter square. An LED has many advantages over incandescent light. LED consumes less energy, lasts longer than ordinary bulbs, is smaller in size and is much more reliable.
This guide includes articles related to the working of light emitting diode and its applications. The comparison of LED and LCD is also discussed.
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