Global LED Lighting Market to Exceed $54.28 Bn by 2022
LED is a semiconductor device that emits visible light when an electric current passes through it. The light is not mostly bright, but in most LEDs it is monochromatic, occurring at a single wavelength. The output from a LED can range from red (at a wavelength of around 700 nanometers) to blue-violet (near 400 nanometers). LEDs are comprised of compound semiconductor materials which are made up of elements from group III and group V of the periodic table.
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