hwo do i know that is high enough while aiming the headlight towards a wall?
no flaming please and thanks in advance

 

just wait till night and aim it down the street and adjust accordingly. I like mine as high as possible without blinding other cars.

 

Position the front of the car 25 ft away from a wall, on flat ground.

Measure the distance from the ground to the center of the projector headlight.

Transfer that same height, but subtract 2", onto the wall.

Each projector puts out a beam pattern with a sharp cutoff. For each projector, the cutoff shooting out towards the left is lower than towards the right, so that the beam pattern looks like it has a step up in the center.

Aim the cutoff so that the lower (left) side of each beam pattern hits the mark you made on the wall (headlight height minus 2 inches).

It should look like this:

___________o---------------____________o---------------