I tried it and the H10 Ballast did work on the H13 bulbs flawlessly and its better than the other ballast cause now the bulbs warm up more faster and are much more brighter too and whiter. Now i got 5000k on the Hi/low and 4500k fogs and they are bright. Ill get a pic of how it looks on the road soon.

One last and final question, they say 55W ballast is brighter than 35W, so if say i get a car and it has only headlights and no fogs. Then would getting 55W Low beams on it make up for the no fogs? And they say that 6k is whiter on 55W than on 35W, so does that mean if i get 5k on a 55W ballast it will be super bright and super pure white? compared to 35W that is.

Thanks again guys