UK amiga in the US? Power supply question

[amigakit]

Do not use an A1200 UK/European PSU in the UK even with the basic convertor we sell as they are not switch mode.

You can either use a PSU which is from an A500 if you have one or use a 250W Switch Mode PSU that we also sell:

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=866