Hence, the intensity of the light depends upon the emitted photons.

So, basically nonconductive material becomes conductive when we introduce impurity. Thus it creates holes in the orbit.įurthermore, the above condition also provides the base for transferring electrons from anode to cathode. These introduced atoms by impurities either introduce free electrons or suck out existing electrons in orbit. Hence, by introducing extra atoms the material becomes unstable. So, to make this material unstable we need to introduce impurity. Without free electrons, the conduction of electricity is not possible. This material has a strong bond of atoms.

The light is nothing but the release of energy as electrons move within the orbit of the atom.įurthermore, the LED’s are made up of aluminum, gallium, and arsenide. Working of LED Lightbulbįirst of all, light travels in the form of particles having zero mass. Hence, larger population all around the world now use LED’s in-home. So, LED’s are more colourfull, efficient and bright. We have various colours in LED Lightbulbs. Furthermore, the energy requires to cross the band gap in semiconductors determines the colour of the emitting light.

How does the led light work