In accordance with the specs, the line-interactive battery backup can accurate for “brownouts and overvoltages from 83V to 147V.” The EC650LCD is sufficiently small to cover away, taking over hardly any desktop room for your 390W unit. Among my favored functions on the EC650LCD is its variety of ECO ports. https://lukasvabba.ssnblog.com/33161481/facts-about-cctv-power-supply-backup-revealed