I would be guessing the one next to the high beam adjusts the high beam. Because they are set to go distance, you probably need to increase you test distance to start to see what you have done. I haven't adjusted the Aurion's lights but have adjusted headlights on lots of other cars. Their should only be two adjusting screws, the third one is just a pivot point. Think about the movement needed. For the screws to move the light they need a fixed point to pivot on. Also, I have found it easier to aim high beam. When that is right low beam is right to.