I just installed HID fog lights on my car. Was having an issue with them not working until I figured out it was the stock connection from the drivers side fog to the ballast that was reversed that was blowing the factory 10A fuse. I have the relay harness connected to the ballast for power. Blew two fuses trying to figure this out and ended up using 3A fuse as thats all I have left and it seems to work fine with that LOL.
Now the only issue I have is the drivers side fog does not seem to be the same color or temp as the other ones. I buy 4500K for my highs and fogs. My highs and the passenger side fog all match but the drivers side looks lower in temp, maybe 3400K, more white or yellow then the blueish the other ones are. The fogs bulbs came in the same box so I hope there is not a mix up from the company I bought them from. Also everything is 55w.