Title: Stay away! Not pure sine wave! Will crash & damage your computer!
Review: I bought this one and my Dell computer which is rated 475W kept crashing at any momentary power outage, or turning on another device (that was not even connected to the UPS). ULTRA BS me for a while, then I discovered that many computers like mine do not work properly when it's not pure sine wave. So as soon as the unit switched to battery, "simulated-sine" (basically, squared) wave was provided by the unit and the computer constantly crashed!So if you want to protect your computer, stay away from this unit, and other ones that do not deliver pure sine wave!!!Also, ULTRA also BS in the spec (like some other manufacturers), 2000VA is when power is on including non-battery surge only outputs....! So the unit only delivers 1200W when on battery.
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