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How to choose UPS uninterruptible power supply in Sri Lanka
When choosing a UPS (Uninterruptible Power Supply), prioritize models that match your device’s wattage needs and desired backup time—look for units with pure sine wave output, automatic voltage regulation, and enough outlets for your setup; for example, if you're protecting a home office or network system, consider a line-interactive UPS with at least 600VA and USB/data line protection 1. [pdf]
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