Should your voltage stages are unstable (ie: power stays on, but the actual voltage stage may differ a great deal with the 220V common), then I believe that's the type of circumstance where an AVR is helpful. Gadgets with solid power supply filtering and regulation commonly don't care regarding the https://mariouemsy.digiblogbox.com/58547212/5-easy-facts-about-uninterruptible-power-supply-ups-described