Deathtrap, My 74 Plymouth Scamp

They might look good, but they're not headlamps. They're headlite-shaped trinkets from China. You don't have to pick either/or; there are headlamps that look sweet and work great. They cost more than the trinkets, but less than a crash resulting from using the trinkets. See here.
They came already on the car. I read your post and it's a ton of good info! I will look into getting something more road worthy.