[James]

Projection lights have little or nothing to do with Xenon or Halogen from my understanding. Many lights come with Projection lenses in either Halogen or Xenon, and don't switch over very easily. Most lights that have a Xenon option are also vastly different in design than their Halogen counterparts, and considerably more expensive. Bi-xenon lights (the ones with the high and low beam bulbs) are also much, much more expensive because they require two xenon control boxes.

To give you an idea, most Mercedes bi-xenons are in the upper 1k to 2k range, with some much, much more expensive. Lexus has a light on their 600h that is 5 grand and some change. Most xenons typically range from 600 to 1200 depending on what comes with them (for instance, TSX lights are a little under 500 for the assembly, but the assembly doesn't come with the box or the bulb which will be the bulk of the cost). Boxes are usually anywhere from 400 to 600, and bulbs are anywhere from 180 to 300 I think is the most expensive I've seen.

HID kits for low end cars usually end in disaster if just installed from my experience. A much cooler, and better option for the cost imo, is Angel Eyes and shit like that. You'd probably have to get them done at a custom shop that specializes in it, but that shit looks fucking cool. Here's a picture of some tC headlights with it installed.