Tripp Lite's Smart Online SUINT1000XL on-line, double-conversion UPS protects critical server, networking & telecommunications equipment from blackouts, voltage fluctuations & transient surges. Space-saving upright tower format. Large capacity 1000VA/700W UPS continuously converts incoming AC to DC, then back to perfect sine wave AC output at selectable 220/230/240V AC (+/-2%). Removes harmonic distortion, fast electrical impulses, frequency fluctuations & other hard-to-solve power problems not addressed by other UPS types. True sine wave output & zero transfer time offers guaranteed compatibility with all equipment types.