It was Thomas Alva Edison, the great inventor and scientist, who was the first one to introduce electrical lighting to mankind through his invention of a carbon based incandescent bulb. Through the decades, many improvements have been there in the field and over 80% of the world is electrified. These days, people care more and more about saving energy and because of this, incandescent bulb gave way to fluorescent lamps, and recently, to the latest energy saving mantra - LED lamps.