Originally my plan was to use the stock headlight circuit to just drive the headlight relay to change from low to high beam but the more I read about the LEDs, it seems they draw LESS current than the old school sealed beam headlights, so now I'm thinking just replace my sealed beams with the LED assemblies and fore go the headlight relay circuit idea.

Anyone else already made the upgrade to LEDs that can share their experience/method/problems?

I'm interested in how that turns out. I like some late model lights, but many are too bright or project bright light in bad directions, plus color matters. I like the old traditional appearance and color in general.

One of the few things I did to my first car, 72 GT, was installing four Cibie headlights plus H1 and H4 bulbs. The alternator died immediately or was already bad. I had the 55a unit converted to 80a with a new stator etc. It took a relay to run the light, an back then high amp relays were not common. I bought a solenoid virtually like a normal starter solenoid, which worked well but now I know it was too big and unneeded.

The H1 and H4 bulbs used to be available in many wattage's. I used 100w in the high beam bulbs and at first something like 55w/60w in the low/highs. I forgot the details, but I do have the parts stored, plus some new bulbs(55/100's for example).

I hope the LED lights work out well for you, it has great potential for better light and longevity, plus preserving the wires from breaking from old age, brittleness, handling etc.