The Standby ELTEC Line-Interactive UPS Systems are Economical Data saver and are Manufactured with the Latest Power Conversion Techniques. Employed with excellent PWM Technology for Power Conversion with its Unique Single Transformer arrangement permits lowest change over time, greater system efficiency, compact size and high reliability.Indeed, an intelligent 4-in-1 standby UPS is just perfect for PCS, Pentium, Micro and Mini Computers, Peripherals & Biomedical Equipments etc.