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This 600VA 300W Line Interactive UPS is a basic, no-frills UPS meant strictly for short-term backup and device protection, not actual power continuity. With a 300W limit, it’s only suitable for a single low-power setup like a desktop with a small monitor or just a router and a few peripherals. The 10–15 minutes runtime at full load tells you everything—you’re not meant to “use” your devices during a power cut, just safely save your work and shut down. It does include useful essentials like AVR to handle voltage fluctuations, cold start, and generator compatibility, which helps in unstable power conditions, but that doesn’t change its core limitation. The lead-acid battery is standard at this level, meaning cheaper replacement but also shorter lifespan and maintenance compared to lithium options. So if you’re expecting anything beyond emergency backup—like running your setup for extended periods—this will disappoint immediately. It’s a safety buffer, not a power solution.