On Jan. 1, 2014,the  60 and 40 watt light bulbs will be banned. In order to comply with efficiency standards outlined in the new Energy Act which was signed into law by President George Bush in 2007. It will be illegal to manufacture or import them after Dec. 31. But retailers will still be able to sell off any remaining stock.

In 2012, all 100-watt bulbs were phased out, and 75-watt bulbs disappeared the following year.

Noah Horowitz, senior scientist for the National Resource Defense Council told Yahoo Shine, "Once all of our nation's 4 billion screw-based sockets have an efficient bulb in them, U.S. consumers will save $13 billion and 30 large coal-burning power plants-worth of electricity a year. The savings really add up,"