UNfortunately, my mains cable aren't long enough to reach the socket so I need a mains block or extender. It only needs to be 2 gang. Under the circumstances, is there any reason I couldn't use the following (along with an appropriate back box, cable and plug)? [URL]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=5815166066&rd=1&rd=1[/URL]