LED can additionally be made to emit particular wavelengths of light relying on the semiconductor utilized. For example, aluminum gallium arsenide is for red LED, aluminum gallium phosphide is for greed LED, and indium gallium nitride is for blue LED.
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Both flashlights and headtorches from Lenser are clearly based upon LED technology. Essentially, an LED is composed of two types of semiconductors that have differing abilities in the transmission of electrical energy: