Product review (2 stars): I'm reviewing the product, not the seller...
...but I've got to say these are pretty lousy.

Thank you GE for putting weird lamps and sockets into something as basic as a microwave. I've had nothing but problems with the appliance's underneath lights.  Replaced them twice in just a few years, but that's not even the worst part.  No, the worst is that the sockets don't even hold the lamps adequately -- they just sit loosely in there and gradually work their way free until you have no light again, and eventually you unscrew the one screw and open the glass door, and the lamp just falls out onto the stove-top and shatters.

Which begs the question: how frail is this glass if it will shatter from bouncing off of sheet metal?  Just said.

Normally I'd say "don't recommend, will not buy again" but to my frustration, I'm saddened to admit that I'm going to have to keep buying these little pieces of crap because someone has figured out a way to trap me into buying their lousy product.