I just installed a set of Hella 55W 500's and no go,..they blink on & off and sometimes don't even come on, or just one will be lite. . I just stopped and bought 35W (well below the 45W standard))) & samething happing. I have a Stubby Bumper so I'll never put stock bumper or use the factory fogs, so I cut factory pigtails off about 6" down then tied right into factory Fog harness wiring. I read somewhere that the Computer does this if wattage is to high, mine isn't.(35W should be just fine))) Anyone have a solution besides stand alone wiring, my KC's are a stand alone, I really want these run off off of my Stock switch if I can. Did I fry a Relay when I had the 55W in and now it's junk????don't really have an idea what to look at.