This is a 250W halogen bulb from a set of cheap (and extremely effective) work lamps I bought a while back.
When the bulb blew, the filament melted completely through the glass shell and left a really neat hollow strand protruding out the bottom. The bulb is flipped over in the photograph so it would actually sit flat on the workbench.
Spectacular fail!
Too bad that the bulbs are so expensive. But when you replace one...AHH MY EYES, the goggles they do nothing!
I dunno about "expensive." I think I paid like $4 for a 150W replacement.
I bought one a few months ago and cheapest I could find one was for $8. Compared to buying a whole new Halogen light for $20.
Yeah the complete lamps were surprisingly cheap.
It's the same pricing model as inkjet printers.