LED (Light Emitting Diodes)
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03-09-2014, 10:34 PM
![[Image: LED-lights-health-hazard.jpeg]](http://www.greenprophet.com/wp-content/uploads/2012/09/LED-lights-health-hazard.jpeg)
How does the LED work?
LEDs are basically tiny light bulbs that fit easily into an electrical circuit. Unlike ordinary incandescent bulbs, they don't have a filament that will burn out, and they don't get very hot.
They are illuminated by the movement of electrons in a semiconductor material. They also last just as long as a standard transistor.
The lifespan of an LED surpasses the short life of an incandescent bulb by thousands of hours.
This invention was one that has gone down in history as a major change.
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LED (Light Emitting Diodes) - by Ghost - 03-09-2014, 10:34 PM
LED (Light Emitting Diodes) - by Guest - 03-10-2014, 12:23 AM
LED (Light Emitting Diodes) - by jerralhf - 03-12-2014, 12:26 AM
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