The U.S. Department of Energy (DOE) today adopted two new rules for light bulbs, also known as general service lamps, that will conserve energy and help consumers save on their energy bills. The first rule establishes a revised definition of general service lamps while the second implements the minimum standard of 45 lumens per watt for light bulbs that meet the revised definition. These rules are part of 100 energy efficiency actions the Biden Administration is completing this year, which together will save families $100 every year.