Optronics International is the fastest-growing vehicle lighting manufacturer in the United States, and is a premier worldwide manufacturer and supplier of branded industrial and commercial vehicular safety lighting products. Optronics international attrib Product Features:PVC grommets for flush mount of 70 series lights; grommet provides shock mount to lengthen life of lightSteel brackets mount to trailer frame; no panel cutout required. Use with A70GB grommet or recess flange mount lights.