More in Remodeling
Measure the area where the lights will be installed, and mark the edge. Using a speed square, continue the line under the shelf. Mark a line along the length of the shelf at the bottom so all of the lights will line up.
Drill holes for the electrical cords using a paddle bit.
Attach the first light to the bottom of the shelf, and continue installing the remainder of lights.
Feed the cord up through the hole made earlier, and attach the small transformer to the underside of the shelf. Connect the individual lights to the cord.
Install the switch and the plug.
Spackle up any exposed nail holes, and then paint over it.