Power consumption is one reason for LEDs. Those 130w lights use around 10A each!
Is that bad? All I know about electricity is it's invisible, potentially painful, and MY project require an electrician.
The pair my dad ran were on the front of a '79 Rabbit. That was the last year of the round headlights, and it actually had a cool rally car look with those 8" ProComps on the bumper. I don't know how big the alternators were on Rabbits, but I'm guessing somewhere below what's installed on today's pickups. With heavy gauge wire and a dedicated fuse I don't see the problem.
