Anyone fitted any LED headlights yet. - Just looking on the net at the bulbs and they seem to be either LEDs on the the upper and lower surface or on all four sides. With my XB12s I do have two reflectors so I guess cutoff at the top is not an issue (certainly don't want to dazzle oncoming drivers). I know the actual LEDs give off very little heat, but the associated electronics do and in most cases come with a fan - how much heat are we talking about here?