To be honest I was surprised it needed a direct feed to the battery because it also uses a headlamp connector as well, only one of them though which I thought was odd, still it seems to work OK and for £ 25, cheaper than putting some ordinary lamps in it from my local dealer at £15 a pop. I'll see if I can put up a link.
http://www.ebay.co.uk/itm/310695758635?s...1497.l2649
http://www.ebay.co.uk/itm/310695758635?s...1497.l2649