This is what I've found to be true so far with the ones I've installed. They are aimed down and away from on coming traffic. They are also significantly brighter than anything I've seen in a normal bulb.
Pastor Kerry
I have to disagree on this one. I have the Hella h4 kit in my truck and it is ridiculously brighter than the regular sylvanias I had. And those were the silverstars. I have the 55/60 bulbs in my lights and they do not blind on coming traffic at all. If the lows are aimed right they will be fine as long as it has a crisp cut off.