Yea, I noticed the smaller guage wires when I was tinkering with my headlights. I ended up installing 14 guage wires from the battery, via relay, to each headlight. Then, installed Silverstar
high beam bulbs in each light housing. (low beam socket had to be changed out, of coarse)
Big improvement. Not blinding to other drivers. Took about an hour to do it. I still get the "dude, you got a headlight out". Oh well.
Getting the correct voltage to any appliance, whether a light bulb or a refrigerator, will make it run more efficiently and last longer. (most of the time
)