80 PLUS qualified power supplies are an integral part of the latest ENERGY STAR label specification for computers. The EPA has strengthened the requirements for earning the ENERGY STAR to meet energy use guidelines in three distinct operating modes: standby, active, and sleep modes. This ensures energy savings when computers are being used and performing a range of tasks, as well as when they are in standby. ENERGY STAR qualified computers must also have a more efficient internal power supply that meets the 80 PLUS specifications.