The SolaHD S4K2UC series is ok compact, on-line uninterruptible power system (UPS) that continuously conditions and regulates its output voltage. it is designed to supply microcomputers and other sensitive equipment with clean sine wave input power. Upon generation, ok power is clean and stable. However, during transmission and distribution it is subject to voltage sags, spikes and complete failure that may interrupt computer operations, cause data loss and damage equipment. the S4K2UC protects equipment from these disturbances. the S4K2UC continuously charges its batteries from utility power, enabling it to supply power to connected loads even when utility power fails.