Although these passed the annual New York State safety inspection, I thought they needed replacing:
A closer look:
The bulge was upward, of course.
The Forester’s manual says they’re HB3 bulbs, but the rest of the world knows them as 9005 bulbs. At full power they draw 60 W = 5 A each, although we rarely drive at night and then rarely have the opportunity for much high-beam use. I assume the blackening comes from nine years of running at half-ish power as the Forester’s daytime running lights.
The low beam headlights seem to be in fine shape.
These two went into the tray under the floor of the rear cargo area, because the crappy bulb you have is better than the one that just burned out on the road.
The Smell of Molten Projects in the Morning 
The crappy bulb you have in the car is also better than the brand new spare you have on the bench at home
Exactly that logic produced the tool kit in my under-seat pack weighing more than some bicycles.
Hmm, sounds like I need to take a look at both Subie’s headlights. At least the Honda uses LEDs for driving lights.
Thanks for the heads up!