Hello Phill.
Give me some info please.You have i see projector with halogen lamp?What type of halogen use?
The best solution is to open headlihts and change the projector with Bi-led projectors.I retrofit in my skoda fabia and the light is simply crazy.Best cuttof,crazy wide beam,and of course a lot of lumens,I am new member and i post next day the procces.
Second solution is to put some quality led Lamp,but its not good because maby has dark sport aeras.Try and see ,also rotate the bubl to get the best uniforimity.
Third option is to get a set of ballast-bulbs.Connection is simply.You connect the 12v to ballast,and the wirings from ballast goes to bulb.
But you need to know the projectors to use Halogen lamp,when you put xenon bulbs,the xenon bulb is more hot,and after some time maby 1 year?2year? the inside reflector of projector burned and the light dont go out.