You want to see the number 115 v if in North America
that being said if you put on 230 v it just would not work the dual voltage windings
are looking for 230 v
in reverse if you were in Europe and plugged in at 115 v you may fry a board for you would be getting 2 x as much voltage , depending too what you had for safety inside ,if you had a thermister it would heat up and trip the circuit open if the fuse didnot , if just a fuse you could fry the board.