Light is crated in an incandescent light bulb, a fluorescent light bulb and a LED light bulb for a very long time. In 1870s, Thomas Edison invented the first electric incandescent lamps during and then, the first fluorescent lamp came after in 1927. In 1962, Nick Holonyal Jr., invented the first visible spectrum LED in the form of red diodes first and fellow by other colors of diodes. As there were many companies improved its manufacturing, it was fast to invented the LED bulbs which is widely use in today for a various of applications.