This is what I found , the car has been totally rewired , the voltage out of the headlight harness is 12.30 volts. When I plug in the headlight extensions the voltage drops to 11.58 volts at the bulbs. I am attributing the voltage drop to old extensions which I have not replaced. Hence the dim lights. Am I thinking correctly. I would like a second opinion before replacing the extensions. The only thing I find odd is the voltage a drop is identical on both sides.