That's VxE=A not V+E=A.
I live in whitetail deer country. They think they have the right of way, especially during the rut. I replaced the 7" Halogen bulbs in my '52 GMC with Hella 7" reflectors (they also make a 5 3/4" model) that take the same H4(9003) bulbs my wife's Toyota Highlander uses. While I was at it, I did my own relay system. Made a huge difference.
Standard H4 like I use is 60 watts on high beam. There are higher power versions up to 100 watts. Just don't flash them at your local Gestapo deputy on a lonely country road.