I’m using a standard UK adaptor with the power supply it came with Switch, and all seems well. This is the one I’m currently using:
http://www.electrosupplies.co.uk/Electrical-and-Lighting-Mains-Plugs,-Sockets-and-Extensions-Travel-Adaptors-and-Converters/c4_180_2202/p65300/Worldwide-UK-Travel-Adaptor/product_info.html
But now I’m also thinking to connect it to a 4ms Row Power, so I can have one less cable hanging from my cases.