Quote Originally Posted by kisshmet View Post
If you indeed have a lab then you can afford to be definitive

How come you cant say its true?

A true AVR will maintain a 220VAC output whether the outlet goes up or down
It will can only maintain 220 kung pataas input before the fuse blows. Kung pababa yan, may certain range lang rin na kaya nya yan i hold at 220 for the servo types.