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25 Pack LED Bags Assorted Colours Rainbow
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Spotlight – Understanding LEDs

Birth of a legend. The LED is one of those inventions that happened slowly then all at once. The idea of electroluminescence was discovered in 1907. H. J. Round, a British scientist, working at Marconi Labs was one of the pioneers of the technology. While working with cat’s whisker detectors he used a variety of...

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