The lights adds a glow of amber on the edge of the windshield making the bike more visible and easier to be seen at night. The light attaches with chrome channels and set screws at any desired part of the windshield. (May not work on aftermarket windshields.) Each kit has two strip lights containing 9 amber LEDs each, chrome channels measuring 5 inches with a ¼ inch opening for the strip light and a 36 inch lead wire. Functions as a running light. Pair.