So I recently bought some 6000k Bulbs off of ebay..The listing stated I was getting D4S bulbs for my 07 IS250. When I got them, I immediatly installed them and turned em on!!! I was excited... later that evening I decided to go on a drive... To my surprise everytime I would turn that HID bulb on the side I turned to, would go out!!!

I would than turn off my headlights and turn them back on and everything was fine again... Come to find out I was sent D4C bulbs... Does this make a difference, and has anyone had the same problem??

here are the pics of the aftermarket bulb (left) vs the OEM one (right). Do the metal tabs on the bottom of the OEM one make a difference?