agreed!! but there is a thing called inrush current and in that period psu will take more then 1200watts but luckly its under 32ms for this psu(i guess), so opening your PC from OFF state on a UPS could be risky but if it was already ON and in case of power outage you will be just fine.... 1200i is the most stable psu ever been made, OEM vendor flextronics made it possible