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Light-emitting diode


A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode, which emits light when activated. When a suitable voltage is ...

How Light Emitting Diodes Work | HowStuffWorks


Light emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. They do dozens of different jobs and are found in all kinds of ...

Learn About LED Bulbs | Products | ENERGY STAR


Why should I choose ENERGY STAR certified LED lighting products? What are LEDs? LEDs, or lightemitting diodes, are semiconductor devices that produce ...

LED Lights - How it Works - History - Edison Tech Center


Introduction: The LED is a light source which uses semiconductors and electroluminescence to create light. There are two major kinds of light emitting diodes: ...

www.ask.com/youtube?q=Light Emitting Diodes&v=GodkGafZsh4
Nov 18, 2012 ... Light Emitting Diode (LED) ... that use an outside source to produce light or electricity in their respective forms ... You mean Christmas lights?.

Light Emitting Diode or the LED Tutorial - Basic Electronics Tutorials


Electronics Tutorial about Light Emitting Diodes or LEDs with LED Types, Colours and the use of Series Resistors to limit current flow.

Light-Emitting Diodes: E. Fred Schubert: 9780521865388: Amazon ...


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Philips Color Kinetics - What is an LED


All Philips Color Kinetics lighting solutions are based on LED technology. Why? Because LED lighting solutions are highly efficient, long lasting, environmentally  ...

Light-Emitting-Diodes-dot-org home page - ECSE


Chapter 07: High internal efficiency LED designs · Chapter 08: Design of current flow · Chapter 09: High extraction efficiency structures · Chapter 10: Reflectors ...

LED | electronics | Britannica.com


Mar 18, 2015 ... In electronics, a semiconductor device that emits infrared or visible light when charged with an electric current. Visible LEDs are used in many ...

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Light Emitting Diodes - HyperPhysics


Light can be produced and/or controlled electronically in a number of ways. In light emitting diodes (LEDs), light is produced by a solid state process called ...

What is light-emitting diode (LED)? - Definition from WhatIs.com


A light-emitting diode (LED) is a semiconductor device that emits visible light when an electric current passes through it.

How do diodes and light-emitting diodes (LEDs) work?


May 6, 2015 ... But, even better, there are LEDs (light-emitting diodes) that are just as bright as bulbs, last virtually forever, and use hardly any energy at all.