We used blue masking tape on the windshield for an initial reference point. Once we knew the center of the windshield and had a horizontal line for reference, we held the Rayzer in place, adjusting the rearview mirror for the shortest person who would be driving the truck. With the Rayzer against the windshield on the inside, Mike used a white marker to mark the location of the mounting bracket on the outside of the glass.
Rayzer RS Wide Beam Light Installation - Shedding New Light On An Old Problem