Shown here is a more detailed look at the high efficiency and thermal performance of the MVAC400. It is notable that the efficiency for the 24V and 48V models exceeds 93% at both 50% load and 100% load. The 12V model demonstrates similar efficiency, still over 93% at 50% load but falling just below 93% at full load. The second chart shows the output power de-rating with temperature. The red and blue lines correspond to airflow rates of 350 LFM and 250 LFM, respectively. These rates in linear feet per minute (LFM) correspond to volumetric airflow rates of 18.5 CFM (Cubic Feet per Minute) and 13.2 CFM, also respectively. The black line shows the de-rating when cooled only by natural convection, that is, with no fan.