From Voodoo Labs;

Filter, regulate, isolate, and protect!

Pedal Power 2 Plus does it, and does it well, because

any less will degrade your pedals performance. Players everywhere
upgrade to Pedal Power 2 Plus because it powers what conventional power
supplies cant. Pedal Power 2 Plus is hand made in the U.S.A., comes
complete with cables, detachable AC power cord, a 5-year warranty, and
simply makes you sound better!