Hi, I am a relative newbie to the forum having acquired my 08 reg 2.2D Sovereign about six weeks ago. I know from the forum that the poor illumination from the headlights is not a new problem and I have read the applicable posts. I am. however, confused with regards the replacements available. I know I must have H1 448 fitting but if I wish to fit Oram Nightbreaker Plus or unlimited are they a straight plug in or do they require additional wiring/electronics/starters? Thanks Terry