Not sure but it hooks up to a standard outlet. The top of mine doesn't get fully inflated, so there's a slight crease when I use the screen. Also, whenever there is a mild/strong breeze, I can't use it. If you can put the screen up against your house, where it will block the wind, that would be best. I don;t have that luxury with my landscaping in the way.
By Katherine Rockefeller
