The 12 watt Glenda makes your motorcycle more visible to oncoming traffic during the day and at night provides a wide pattern of light which adds to side illumination. They are a combination of a fog and visibility light meant to make you more conspicuous. If you ride mostly on the street, during the day, Glenda is a good choice to help make you safer and more visible. Specifications: 12 watts consumption each. 2" diameter. High power. 800 lumens each. 7 ounces. Fully dimmable. Includes wiring harness. Custom tooled optics. CNC machined. Made in the U.S.A.