Choosing headlights for the truck camper truck

MN Ben wrote:
I have two different lights in my TC truck. One seems brighter but may actually be a different color or may just be old.

Does it seem "brighter" from behind the wheel or when you're looking straight at it?

I ask because one of our rigs had the same "one side's brighter" impression when driving at night and it turned out to be a focus issue, not the brightness of the bulb.