Level VI power supplies are power supplies that meet the Department of Energy’s most recent standards which came into effect in the U.S. on February 10, 2016. The Level VI requirement mandates that No-Load power consumption does not exceed 0.100 W for electronic power supplies (EPS) ranging from less than 1W up to and including 49W.
This is approximately a 1% increase of mandatory average efficiency and for the first time also includes standards for EPS with a power rating above 250W. The most recent regulations also extended their scope to include multiple-output EPS, lower voltage DC-output EPS and EPS with output power ratings exceeding 250W.