The EK200 Standby UPS is a high-efficient, small-sized, appearance-beautiful, performance-advanced & -reliable 300W (600W) power- uninterrupted 220 volt AC power supply system, which is a high quality electronic product designed specially for the microcomputer systems and the sophisticated electronic equipment users . When the commercial AC power is suddenly interrupted, or a certain frequency voltage is too high or too low Instantaneously, it will be immediately put into the power generation in a ten-thousandth second (10ms) high-speed and continue to provide the power for the load, so that the data and the software programs stored in the microcomputer system unaffected to ensure that the microcomputer and the sophisticated electronic equipment should keep on their operating normally.