I've seen these kits advertised which replace the standard halogen bulbs in conventional headlights with HID / Xenon bulbs. The kits come with the ballasts / transformers and a load of wiring.
Has anybody had any experience of these? Do they give more visible light etc or are they not worth bothering with? They tend to be rather expensive and I was wondering whether they were worth while or not.
I know there is a legal requirement to have a self levelling device fitted (this isn't a problem for me however, the whole car is the levelling device) but is a kit likely to give a MOT passing beam pattern etc?
-- James