MICROTEK UPS SW EB 900 is a Micro Controller design based, LARGEST SELLING SERIES of Extended Backup External Battery UPS Systems. It comes with many user friendly features. It has Voltage Range Selection Switch and can be operated in Standard Voltage Range from 100V~300V and Narrow Voltage Range from 180V~260V. UPS SW EB Series Models are based on Intelli Pure Sinewave Technology which ensures Noiseless,Safe and Efficient Performance along with Longer Backup. Rated Capacity 800 VA / 12V Output Power 640 Watts Battery 1 Battery System (12 VDC) Wave form Pure Sinewave Warranty 2 Years