what does led mean
Time：
2022-05-18 10:00
Source：
ED is a light-emitting diode, and an LED is a semiconductor that emits light when you give it some voltage. Its light-generating methods are almost fluorescent lamps and gas-discharge lamps. LED does not have a filament, and its light is not generated by the heating of the filament, that is, it does not generate light by allowing the current to flow through the two terminals. LED emits electromagnetic waves (a very high frequency of vibration), when these waves reach above 380nm and below 780nm, the wavelength in between is visible light, a visible light that can be seen by human eyes.
Light-emitting diodes can also be divided into ordinary monochrome light-emitting diodes, high-brightness light-emitting diodes, ultra-high brightness light-emitting diodes, color-changing light-emitting diodes, flashing light-emitting diodes, voltage-controlled light-emitting diodes, infrared light-emitting diodes and negative resistance light-emitting diodes.
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