i had slyvania xarnic hid kit. came with low only hid and pair of lense units. hi beam is h3 hologen. i was very disappointed of its quality. it has very narrow lighting are like poor spot lights. also too many hot spots, no i should say few hot spots with too many dark area. i couldnt stand so i had take it off. now i have 35w, 6000k hb5 hid kit. hi and low. replaces factory bulb with hid uses factroy lense. i bought it from here.
http://www.88house.com/loud.htm
its exelent. i love it. very white and bright. lights up entire front area with no hot spots. very easy to install too.
now they have 55w coming out even brighter.