those of you with the 89-91 quad headlights, are your headlights sealed beam, or are they composite? mine is composite with glass housings and European H7 55w halogen bulbs. I didn't know if this was a conversion or what. most of thses H7's don't last very long, not sure if it's the roughness of offroad or what. my last set i bought were OSRAM Silverstars, and they are very very bright (they're not Sylvania silverstars - these are German made, Sylvania is American made), i was pretty pleased with them, but i wonder if sealed beam lights would last longer.