I hope you don't mind me posting in English. my written Polish is not so good.
I recently imported from amazon.com, delivery from USA to Poland, 1 piece of the National Geographic Hobby Rock tumbler kit.
It is noted the device supports 110v 60hz and 240v 60 hz.
In Poland the voltage here is 230v 50hz.
In order for me to be able to use the tumbler safely in Poland, is it enough to use a standard US to EU travel adaptor which simply converts the pins.
or do I need to purchase a more expensive transformer device which converts the voltage?
This tumbler device only costs $60 in the US, i ended up paying $120 to get it here to Poland with freight + import charges, therefore I would really like to avoid spending another 500 zloty or so on a transformer if it is not necessary.
This is a present for my daughters birthday which is 1 week from today, so I am hoping to resolve this prior to then.