I've had an enquiry about the xenon HID lights I fitted around ten months ago. All I can add is that they were an easy fit, as the video above shows, and they were still working well when I sold the car.
Not once did they trouble other road users, nobody flashed their lights at me for dazzling them and they didn't get me pulled over by the law. They did make a difference in the field of view and clarity viewing the road ahead. Particularly on those dark winter mornings, evenings and nights.
I used the 4300k bulbs kit. However, I might have gone up to 5000k for a slightly whiter light. Anything more tends to look bluer and attracts too much interest from the boys in blue. Good luck to the chap who made the query with me and don't forget the pics please. They're a great upgrade and they actually use 35% less energy than halogen bulbs.