What is the meaning of led lights?
Time：
2022-05-18 09:59
Source：
LED lights are a type of lamps that are more durable and brighter than traditional light bulbs.
1. LED is a semiconductor diode that can convert electrical energy into light energy. Like ordinary diodes, LEDs are all PN junctions and are also unidirectionally conductive. After the forward current is applied to the light-emitting diode, the holes injected from the P region into the N region and the electrons injected from the N region into the P region, at a few micrometers around the PN node, are respectively associated with the electrons in the N region. And the holes in the P region are recombined to form spontaneous fluorescence. In different semiconductor materials, electrons and holes are in different energy states.
2. Low power consumption: LEDs are low-voltage working devices, so under the same light intensity conditions, the power loss is minimal, which can significantly reduce energy consumption. Instead, future technologies and materials will improve its luminous efficiency. Some people estimate that the replacement of all street lights in Japan with LEDs can save two large power plants, which is very beneficial to environmental protection.
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