Fitted some new front fogs on my Fabia the other day and checked them, then realised that the fog lights on the passengers side were dimmer than the ones on the drivers side. Same with the rear fogs aswell. I dont think its the bulbs as I fitted the original bulbs back in and they did the same, so am I right in guessing it could be a fuse problem?

More likely to be an earth problem, but check bulbs are the correct wattage. Slim chance, but also check they are 12V bulbs and not 24V bulbs for a truck.

The bulbs are all 12v 55w definatly, made sure of that as I didnt wanna potentially melt my headlights If its an earth problem is it a quick and easy fix which can be done yourself?