Quote Originally Posted by WashougalWonder

Well I got a sub panel in and it is running on 220, can't notice any visible difference, nor any temp difference. I do wonder if for a magnetic ballast if it would be more efficient for them also?
Hey WW,

Almost any induction load is more efficent at 220v versus 110v, and that includes magnetic ballasts. Keep in mind that most of the efficency gained is durring start up, decreaseing the intial surge amperage.

OM