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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 applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons.
Wikipedia › wiki › Light-emitting_diode
electronics.howstuffworks.com › led
Light emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. ... Basically, LEDs are just tiny light bulbs that fit easily into an electrical circuit. But unlike ordinary incandescent bulbs, they don't have a filament that will burn out, and they don't get especially hot.
www.explainthatstuff.com › diodes
Nov 11, 2016 - 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. An LED is a special type of diode (a type of electronic component that allows electricity to flow through in only one direction).
Wikipedia › wiki › Light-emitting_diode
A light-emitting diode (LED) is a two- lead semiconductor light source. ..... A hemispherical semiconductor would also work, with the flat back-surface serving ...
Philips › lighting › education › video › L...
Discover the basic concepts of LED, the production and the operation of LED in this video.
www.edisontechcenter.org › LED
How They Work (LED) .... It wouldn't be until the 1990s that the blue LED would become low cost for commercial ...
www.todayifoundout.com › 2010/03 › h...
Mar 8, 2010 - How and LED Works ... The most common type of diode does this by using something called “p-n ...
CNET › news › appliance-science-how-le...
Nov 18, 2014 - LED lights are the latest thing in home lighting, using less energy and lasting ... How do they work ?
University of Notre Dame › ~leds › How
A light-emitting diode (LED) is a semiconductor device that creates light using ... LEDs, on the other hand, produce colored light that does not need to be ...
www.eslightbulbs.com › how-do-led-ligh...
An LED is a small light bulb that easily fits into an electrical circuit. These light bulbs do not get hot and they are ...
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6.05am Sunday 4thDec2016
How do LED's work?
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