If I recall, their are kits you can buy to convert to LED. They include what you need to provide more power. Usually a rerun of heavier wire, fuses and relays - then when you put in some big boy LED's - they really shine
As I recall, I found:
Daniel Stern Lighting Consultancy and Supply
On a stream of posts that included Dutch Star Don when he was Diplomat Don, and Mr D - somehow I think this is the first thread where I ran across your posts... Maybe 4 or so years ago now.
Anyways, the attach link is to a group that could give specific recommendations and options for headlight LED conversions.
Best to all,