GE 9500 High Beam bulbs
 

Some fool at GE decided to engineer 3 humps on the flat mating surface of these bulbs where the mating surface meets the internal ring of the socket of the headlight.

Can't believe how hard I had to press in on these things to be able to lock them in place with the quarter turn.

The Sylvanias have (well, had last time I bought them however long ago that was) a flat mating surface. much eaiser

Guess these'll never fall out.........

Oh, 97SC2