I tried a similar set up last year, it looked good and illumination was spot on butthe resistor heated up to quite a high temp. so downgraded to mtec pure white halogens.
I brought some typical led bulbs for hb4 fitmeant when I went to fit realised they were h11 decided to spend a bit more and try something a bit different so got these beauties:2014 New 72w 6400lm H8/H9/H11 Cree LED Headlight Conversion Kit Lamp Bulb WhiteA good bonus I have found so far (finger crossed) is that as they have the little pack to run the bulbs / fans they don't throw a error code on the dash!Night time fogs onlyCornering fogs