Hi Nathan,
Yes, the size is H1 (look for number 448 on the box). I didn't fit them myself as accessing the back of the lights is not an easy job. So, when my car went in for a service the other day, I got the technician to fit them for me. Obviously, he charged me, but it was well worth it, considering the discount on the bulbs virtually paid for the fitting.
Hope that helps
Barrie