How do LEDs product light? How do LEDs work? What is an LED?
LED - Wikimedia Commons
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A Light Emitting Diode (LED) Is A Two Lead Semiconductor Light Source. Electrons Are Able To Recombine With Electron Holes Within The Device, Releasing Energy In The Form Of Photons. Royalty Free
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Light-emitting diode - Wikipedia
Light Emitting Diode (LED) - Working, Construction and Symbol - Diode
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LED Lights - How it Works - History
Light Emitting Diode <What are LEDs and How Do They Work?> | Electronics Basics | ROHM
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What is LED? - Definition, Working, Properties, Uses, Advantages
Light-emitting diode - Wikipedia
Light emitting diodes - LEDs | How they work and their limited use in optical networking - Fiberguide