4 ms·It's so limited without a power level feature. It needs to be able to cycle power to heat food evenly.by stronglikedan 2y agoIt's so limited without a power level feature. It needs to be able to cycle power to heat food evenly.r00fus 2y agoIt does heat food as evenly (possibly more evenly) than my other microwaves.consp 2y agoSome microwaves have a wave deflector which causes the wave to be less uniform in the cage and thus heat more evenly and not with 12.5cm standing wave intervals.