I think they make sylvania silverstar sealed beam replacements for the volvo. But they're kind of expensive. If you want bright, do the H4 replacement and PIAA 85/115 W bulbs (or whatever the brightest thing they sell now is) The conversion is about 15-20 USD a light, and the PIAA bulbs are 60 a pair. Yes it's expensive, but I put one of these bulbs on my bike and the difference was amazing. The bike threw nearly as much light as my car did with low beams and fogs on, and had greater distance than the high beams. That being said, my car has three out of 4 headlights full of water, and I don't plan on doing anything about it. I'd like to replace the fogs in the factory location but they'll get torn off in about 90% of the parking lots in Pittsburgh.