in may, i got those fake xenon bulbs for my car. i put them in and had no trouble from them all summer. in december, one of them burned out. i replaced both with the origonal bulbs cus i didnt want one bright and one dull. then i bought another pair of the xenon's, thinking the burned out one was a dud. a week or 2 after i put those in, one burned out. i replaced it with the one i had left over from the origonal xenons i bought. about a week later, one of them burned out. so i now have one working fake xenon out of the 4 i bought. whats up with this? the wattage on the bulbs is 100 and i kno the teg is supposed to have 55 watt bulbs, but the first xenons i got were fine all through the summer. could it be the cold thats causing them to die? also, we've had very weird weather around here in the past month or so (5 below zero one day, 65 the next, etc) does that have anything to do with it? or should i just stop buying these bulbs?