B
breezer
If the latter you can buy an inline 230-110v converter, will look like a wall wart (transformer plug) or a lead with a box in the middle like a laptop power supply.
but a laptop wont draw as much current as a couple of lamps will. )so it may not be that easy to find one of the correct rating)
also
The US Edison Screw (for screw-in lamps) is not quite the same size as the European one. ...............
Don't know the measurements, but I know theirs is not the same as ours.
perhaps put a candle in each lampholder instead