I have had 35w xentec hid's in my highs and lows for a little over a year now. I just got a set in to do my foglights too. They are on the cheaper side, and its worth noting that the high beams take time to warm up initially (5-8 seconds maybe, but this is any hid light) before they are at full power. I had some problems with bad bulbs / ballasts originally but the Guy I deal with replaced them for free and really quickly, no problems since and I run them in my bike too.