I definately want more light on the road. I purchased a euro style fog light housing for my e36 98' 328i sedan. They look good great but the output is horrible. The H1's really don't have any effect at night. Now I've seen loads of cars that have enormous light output from their fog lights. I read about upgrading the H1 housing to suport H7 bulb. when I went to check out the lights and compare them they both had the same wattage. Is there a difference in the light output of an H1 vs. H7?