Understanding Lighting Standards In 2012, the manufacturing of traditional incandescent light bulbs changed: Traditional 100-watt bulbs were no longer manufactured as of Jan. 1, 2012 Traditional 75-watt bulbs were no longer manufactured as of Jan. 1, 2013 Traditional 60- and 40-watt bulbs were no longer manufactured as of Jan. 1, 2014 First generation T8 lamps[…]