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    <p><strong>Input voltage:</strong> 220V:145~290Vac±5Vac<br /><strong>Output voltage:</strong> 220V:200~255Vac<br /><strong>Input frequency range:</strong> 50Hz / 60Hz (Auto sensing)<br /><strong>Output frequency (DC mode):</strong> 50±0.5Hz / 60±0.5Hz<br /><strong>Transfer time:</strong> Typical 2~6ms, Max.10ms<br /><strong>Battery low voltage protection</strong><br /><strong>Auto re-starts when AC recovers</strong></p>
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