The 2 Light Top Channel option features two openings for emergency light mounting. The light openings are placed evenly at the far ends of the patent pending Top Channel and are designed to accommodate oval (Code3) rectangular (Federal Signal) and rounded corner rectangular lights (Whelen). The Top Channel can be upgraded to accommodate additional lighting needs at a later time with a 2 Light Top Channel. Push Bumper Light Channel; Black; 23.5 in.; Whelen; 2 Hole; For Use w/Push Bar Elite; Push Bumper Light Channel 23.5 inch Whelen; 2 Hole