What is a LED and how does it work
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What is a LED and how does it work
An LED (Light-Emitting Diode) is a semiconductor light source that glows when current flows in the forward direction. Inside, a tiny p-n junction lets electrons and holes recombine, releasing energy as photons—the color depends on the chip’s material (IR, red, green, blue, UV). Modern LEDs are efficient, cool-running, and long-life compared ...
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