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Pure Sine Wave Single Phase High Frequency Online UPS 10Kva 8Kw DSP Double Conversion DSP Technology Environment Friendly Active input power factor correction (PFC): Digitalized control of the PFC enable the UPS to keep input power factor above 0.99 to prevent possible electric grid pollution and meanwhile mostly save the cost. Wide range of input voltage and frequency: We intentionally widen the range of input factors to make sure the UPS can apply to various environment,