A year or so back, I bought a dozen GE EJL (I think that's right...I'm not at home as I write this) bulbs for next to nothing on eBay. I go in streaks of very good life and then, like last weekend, I blew 3 in a day. I vaguely recall reading somewhere that corrosion on the bulb pins can cause problems. These bulbs all appear to have more surface corrosion than normal (certainly not shiny and fresh). Does anyone have any insight on this?