This may seem like an odd question. But is there any corrolation between the quality of socket and the longevity of bulbs. I know manus claim that they have differing types of sockets (primarily speaking about bi-pins) that set them apart from the imports. What are these main differences, and will a cheap socket cause a short in a bulb or premature burnout? I am wondering if any of you that use several different brands of lights, notice a higher premature lamp burnout rate with some over others? I am trying to do a little research and I am noticing some differences between fixture brands with the same bulb and same voltage, but having different burnout rates. I have noticed this over and over. I don't know if it is an inconsistency in bulb reproduction or if it is the quality of sockets used in their lights.