This question is regarding switching front 98' S70's headlights to HID lights. (Not Blinkers.) I have previously purchased other bulbs from company like PIAA and Razo for my Volvo however those bulbs on my car only last for 3 month and it gets burnt out. While the same bulb on other car last for 3 to 4 yrs. HID lights is a pretty steep investment for light bulbs (600 dollar a pair.) What I am wondering is has anyone installed them yet, also you have problems with it burning out?