what is led ???????????
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A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. ... Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red.
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A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. ... Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red.
A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. ... Infrared LEDs are used in remote-control circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red.
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