In Europe the standard voltage in homes is 220V instead of the 120V used in the United States. Therefore a 100W European bulb would be intended for use with a 220V potential difference.
1) If you bring a 100W European bulb home to the United States, what should be its U.S. W power rating?
2) How much current in A will the 100W European bulb draw in normal use in the United States?