Just replaced 1 of my main lights as it blew at the weekend, Now running Halfords Extreme bulbs (Xenon's with 90% more output) they're running a buy 1 get 1 free offer at the moment.
sidelights now look very very dim so must order replacements now.
Yep melted the plugs on my old Astra when running 120W blubs, mind you I was also running quad 150W Spots/driving lamps in a pod as well, Jeez it was bright when all on.