Question

what are the components present in small led lights

Answer 1

A light-emitting diode (LED) is asemiconductor light source that emits light when current flows through it.[5] When a suitable current is applied to the leads,[6][7]electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is calledelectroluminescence. The color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. White light is obtained by using multiple semiconductors or a layer of light emitting phosphor on the semiconductor device......

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