Thanks retrolefty,
I see what you have pointed out on the picture which is great. However my apologies as I have failed to mention that because that seller sucked I have bought another from a UK seller (http://www.ebay.co.uk/itm/221005545219?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2648) which looking at it, also shows diodes built in which is also good!
Sam