Well if you want a halogen bulb with colored glass. You can get bulbs that use the same stock wattage. (55W i believe for h11) Try and get bulbs from PIAA, don't buy from sellers over seas (china, tiwan etc). If you want a xenon conversion kit (NOT HALOGEN) thats a nice way to go. I have a 8000k h11 (low beam) kit. I paid $63 total on ebay. It did actually come from China (made in Germany though) but i haven't had problems. Same price as some nice PIAA halogens. The only thing is that when you first turn them on (xenons) it trips a sensor on the car thinking you have a burned out bulb becuase it uses lower wattage. (this sensor is only on the low beam and flickers for the first 5 seconds and goes away after the xenon warm up to full brightness)