The rectangular 2-headlight bulbs are denoted as
6054
I looked for weeks and found a single replacement 6054 made in Italy for almost 180-dollars each. I would defintely check voltage at the headlights.
The old louvered Per Lux stainless steel lighta were hard to beat for legal low-bean use. Halogen low beam bulbs consume 45-watts.
A 30-watt LED needs a LARGE finned heatsink. A finned disc an inch thick and about the diameter of a tennis ball. A flat chip would be twice the area of a postage stamp. A COB would be needed but where are they going to stick the heatsink? I smell a rat. This does not add up.
FROM THE SCHOOL OF HARD KNOCKS