APC BX1100LI-MS, an exemplary solution for uninterrupted power supply. With a robust 480 Watts/900VA capacity, this UPS seamlessly navigates power outages through its line interactive topology, ensuring a stable power provision with a stepped approximation to a sinewave waveform. Its adaptability is underscored by a wide input range and 50/60 Hz frequency, accommodating diverse power conditions. The lead-acid battery, characterized by a 12V Nominal Battery Voltage and 108 Battery Volt-Amp-Hour Capacity, affords extended backup capabilities, complemented by an expedient 8-hour recharge time. The user-centric LED display and discernible low battery alarm facilitate informed decision-making. Compact dimensions of 160mm x 120mm x 355mm, coupled with IP20 protection and an operational temperature range of 0-40°C, attest to its resilience. Supported by a 2-year warranty, the APC BX1100LI-MS represents a judicious investment in dependable power infrastructure.