How LED Light Bulbs Work

The light bulb that has lit up our homes since the 1800s was officially on its way out after former President George W. Bush signed the Energy Independence and Security Act of 2007. Although the act didn't ban the use, purchase, sale or manufacture of incandescent bulbs, it did require household light bulbs to have 25 percent greater efficiency (which means 25 percent less energy use) than the traditional bulbs that used between 40 and 100 watts of electricity. The inefficient incandescent, where 90 percent of its energy is given off as heat, had fallen out of favor with the financially and ecologically concerned.

Original Article Source Credits:   How Stuff Works , https://science.howstuffworks.com/

Article Written By:  Francisco Guzman 

Original Article Posted on:  May 28, 2021

Link to Original Article:  https://science.howstuffworks.com/environmental/green-tech/sustainable/led-light-bulb.htm