Excellent follow-up, do not get sucked into the "blue bulb" mess. This created dangerous lighting levels (read as NO GOOD LIGHT). I fyou want real good light convert to "E" spec headlights, check on the legal implications. Or check out Dan Stearns lighting web page, great technical information and myth busting.

Good luck.
P.S. I am running 130/100W Bosch E-spec headlights, I have MUCH light but it requires full secondary wiring.