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![Light-emitting diode - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_14.jpeg)
Light-emitting diode - Wikipedia, the free encyclopedia
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日期:2024-09-04
A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for general lighting. Appearing as practical electronic components in 1962, early LEDs e......看更多