... 220V AC Output precision:1.5%. voltage regulator with LED display(new design)·Single Phase, Servo type voltage stabilizers ·Adopting ... accuracy, reliable performance ·Protection for time-delay, over-voltage, low voltage etc. ·Option for Digital Display / LCD Display ... wide range of regulation.4.Strict design,accurate assemblage.Usage area:computer,lighting equipments,TV equipments,medical equipments, ...