davei1980 , I know about as much about electricity as you do - it hurts to touch it. I do think that 8,000 lumens will be nearly impossible to achieve easily and reliably, and will also be waaaay too much light. You don't need that much to see the road, and you will blind other users (e.g., motorists) to the point of being a hazard.

It seems to me that twin headlights of more reasonable output (1000 lumens or so) will be much easier and more usable.