How do you adjust the headlights down? I'll be doing this soon myself!

 

Before leveling I used my garage door to make some benchmarks. I parked approximately 20 feet from the door and put some blue tape at the top and bottom of my light pattern. After leveling I used these same marks to line up the pattern. For my headlights (LED) there's an adjustment screw on the top of the housing. I just used a philips head #2 screwdriver. It clicks when turning for the adjustment.

Hopefully this helps.