Does what it's supposed to. Got it for a PedalPawn Gypsyvibe pedal which is a powerhog and the 2000mA is reccomended by manufacturer (and there really aren't that many 18v, 2Amp power supplies) and it run's beatifuly with it. Just bewared, after plugging it in different pedal requering 18v but only 100mA, the amount of bacground noise was insane. Minor detail, i measured 1,5Amps instead of 2Amps with multimetre. (Still more than enough)