In summary, the Inventus Power 150 W switch mode power supply options support a high efficiency rating (up to 91%) with an ENERGY STAR Level V ranking. With a case size of 7.5 in x 2.5 in x 1.5 in, these power supplies are listed at 1.55 lbs (0.70 kg) in total weight. Other features to note include a hold-up time of >25 ms at full load and a low amount of output noise.