Check out this unexpected pron. What we have here are the internal structures of a 450 lumen LED bulb (left) and an 800 lumen LED bulb (right). And how did I get these plus 2 others? By simply installing them in the 2 gooseneck lamps I recently bought. For some reason the glass bulb spontaneously shatters at the base and falls off. I don't have to touch or move the lamps. I hear this “clink” and the bulb falls off. I have no idea why. And the LED's continue to function. It is really weird.
Perhaps a defect is being introduced during manufacturing, e.g., when attaching the base. With some thermal cycling, the glass initiates a fracture and the rest is, "clink," bye-bye bulb.
I haven't had this happen in any other lamps. And I'm not screwing them in real tight either. As I stated the bulbs continue to function so I'll be damned if I'm going to throw them away.
I've not seen such a thing happen, either. At least they're LED, so they'll just keep going regardless. I assume the shade on the lamp provides sufficient dispersion of light in lieu of the frosted glass covering.