Specifications: 1) Stabilizer for AV products 2) Advanced microprocessor (MPU) controlled 3) Dynamic LCD display 4) High precision regulator 5) Input voltage digital display 6) Output voltage digital display 7) Output current digital display 8) Extreme high voltage protection 9) Overload protection 10) Output short circuit protection 11) Delay time selectable 12) Regulator precision selectable Primary technical parameters: 1) Input: AC 140 / 250V 2) Output: AC 220V;5% 3) Frequency: 50 / 60Hz 4) Delay output time: 6secs / 3mins (except 300VA and 500VA)