How LED light works?

From this video you are going to see how led light going to work



In this video it is explained how the LED lights are work and what are the components are used to produce led

LED light emitting diode wish we also called LED is nothing but like PN Junction diode now it is and it is a most widely used in semiconductor time when it is foreword biased normally this is a semiconductor.

 PN Junction diode anode and cathode anode or positive terminal or negative to the PN Junction is surrounded by a transparent hard plastic epoxy resin shape shell to protect this is a transparent cover of the diode although we have already said that led is the same as ordinary PN Junction diode but it is also true that ordinary PN Junction diode does not emit light when it is forward biased.
When any diode is forward biased current flows through the diodes in forward bias condition positive terminal of battery is connected to a tight end a negative terminal of battery is connected to n-type end of the tile is closed due to flow of holes and free electrons both who's injected by positive terminal and migrated towards negative side and electrons are injected by negative terminal and migrate towards the positive side during this process of flow of holes in free electrons there will be recombination among st the free electrons with recombined with empty holes during this recombination electrons in the conduction band that is free electrons would jump to the whole in valence band during this jump off electron from conduction band to valence band electron image energy in form of futon this energy equal to the Forbidden energy gap between conduction band and Valence band.

We know that the energy of a photon is nothing but the product of frequency of electromagnetic radiation and Planck constant now consider

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