The Varunastra Power Supply Unit is a DC-DC converter providing ±150V and 15V outputs, supporting both continuous (6kW) and remote mode operation. Designed for underwater systems, it operates within a 60–150V input voltage range with up to 8A current and complies with ESS (MIL-HDBK-2164), environmental (MIL-STD-810 E/F/G), and EMI/EMC (MIL-STD-461 E/F/G) standards.