LED - Wiktionary
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Light-emitting diode - Wikipedia
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LED | Definition, Lights, Types, & Facts | Britannica
Light Emitting Diode Source: en.wikipedia.org | Download Scientific Diagram
Light-emitting diode - Wikipedia
LED lamp - Wikipedia
Light-emitting diode - Wikipedia
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File:Uvled highres macro.jpg - Wikimedia Commons
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A brief history of the LED - EDN
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SMD LED - Wikipedia
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