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Video: How Light Emitting Diodes (LED)Work - Part 2 
Google Video | Mon, Oct 6
A diode is the simplest sort of semiconductor device. Broadly speaking, a semiconductor is a material with a varying ability to conduct electrical current. Most semiconductors are made of a poor conductor that has had impurities (atoms of another material) added to it. The process of addi...
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[DOD and More] Led House number (Large) - $154.95 (Reg. $179.00)
At night, the numbers light up brightly. The sign uses low voltage electricity and cost less than $1 per year to operate year-round. F.A.Q: How many colors of LEDs do you have? We have a choice of 4 LED colors including white, red, blue, green.
Sat, Jan 30 | from DODTracker.com New Deals
