The Pulsar EL UPS systems are designed for personal computers ranging from a basic desktop PC to a complex multimedia system including a CD-ROM, modem, printer and multiple peripherals. The Pulsar EL2, EL4 and EL7 protect both your computer equipment and data against power fluctuations. They deliver the features of a high end UPS with a design that complement any computer system.The Pulsar EL, the entry level series, offers all the design innovations, performance and technical features at a most attractive price. A battery provides instantaneous backup power should the power fail or fluctuate. Data is preserved on your hard disk and RAM during processing, thus guaranteeing you won't lose your valuable data. Power supply filtering compensates for electrical disturbances, interference and overvoltage, thereby ensuring long service life of components.