Hi Chris, funny you should say that,i had exactly the same problem... it took me ages to sort it, i thought it was the relay,it wasnt... It turned out because their metal and they earth out on rear x bracket,so need to make sure wires are wired up correctly... I know your'll say i changed them one at a time wire for wire. Yer we can all do that even a child can do. But i found one of my wires the front right that had been wired wrong by ducati on the loom. I think red/yellow wires and yellow/red spring to mind... So i wired them up one by one . and then another ,then unplugged the first one and wired them up alternatly. And bloody finnally i found one that was not flashing right...A nightmare, but works now, dont worry about blowing the 7.5 fuse just have a few spare while you setting it up... Good luck,and yes they do look good...Watch the front ones though,because as they are a lot stronger than the plastic stock items,meaning that if you clip them ,they wont break,but will break the fairing first, ouchhhh.... All the best and safe riding, Shaun
MHe - 748 - R1