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 Light-emitting diode - Wikipedia, the free encyclopedia
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a basic pn-junction diode, which emits light when activated. When a fitting voltage is ...
http://en.wikipedia.org/wiki/Light-emitting_diode

คำค้น: LED
 HowStuffWorks "How Light Emitting Diodes Work"
Though they often come in tiny packages, light emitting diodes produce a large amount of light and are used in an ever-growing list of technologies. See more ...
http://www.howstuffworks.com/led.htm

คำค้น: LED
 Led | Define Led at Dictionary.com
Led definition, simple past tense and past participle of lead1 . See more.
http://dictionary.reference.com/browse/led

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 Cree, Inc. | LED lighting, LEDs, power converters, RF amplifiers
Cree, Inc. | LED light fixtures and bulbs, LED components and semiconductors for power and RF applications.
http://www.cree.com/

คำค้น: LED
 Learn About LEDs : ENERGY STAR
How is LED lighting different than other light sources, such as incandescent and CFL? Why should I choose ENERGY STAR certified LED lighting products?
http://www.energystar.gov/index.cfm?c=lighting.pr_what_are

คำค้น: LED
 LED Lights, Bulbs & LED Lighting Accessories - SUPER BRIGHT ...
LED lights, components and LED products including car bulbs, household bulb, light strips, accent lighting and more. All products are available for purchase ...
https://www.superbrightleds.com/

คำค้น: LED
 LED Light Bulbs - Light Bulbs - Electrical at The Home Depot
*Every LED light bulb is coded with a letter to help you identify the shape ... *You can save energy and money with the new technology LED bulbs offer and still ...
http://www.homedepot.com/b/Electrical-Light-Bulbs-LED-Light-Bulbs/N-5yc1vZbm79

คำค้น: LED

LED