Light Emitting Diode

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  • An LED consists of a semiconductor diode packaged in a clear epoxy or silicone gel. The diode contains two slightly different materials: a P-type semiconductor and an N-type semiconductor. The P-type semiconductor has “holes” created by a lack of electrons, producing a positive charge.
A light-emitting diode (LED) is a semiconductor device that emits light when an electric current flows through it. When current passes through an LED, the electrons recombine with holes emitting light in the process.

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