I've purchased what you can call "cheap" ones before.. For the most part, they only lasted a couple of months or so before they've blown out.. Never both just 1 at a time... I would usually say its the bulb but my boy has purchased the same ones for his coupe and they usually last close to a year if not longer.. Could this be a electric problem, bulb or both? The bulbs sylvania bulbs are reasonable at $40 a pair but I don't want to be buying new ones every other month at that price neither... Thanks Skabone!!