Thank you for answering. The country I'm moving to, is Ecuador: 110v 60hz.
I don't mind if my sewing machine will work faster, as long as it's safe and it doesn't overheat. I've heard even polarity, which I don't know anything about, may have an influence.
Panic mode, so, you think that it does matter?.
Some devices have a label with both 50hz/60hz, but the pedal only says "50hz". Like I said, I'm afraid of taking the risk of paying shipment costs for nothing.
Thank you!
pd. I'm editting the post to say that the pedal says "50hz" but the machine says 50/60hz. How about buying a universal pedal?
And, do I need to buy a specific voltage transformer? I've heard a small one with a botton for both options is only good enough for small appliances. Can you give me recommendation?