It is unlawful for any person or persons to operate within the city any incandescent or arc type searchlight, beacon light or similar lighting device designed to and capable of projecting a beam of light into the sky for a distance in excess of one-half (1/2) mile unless written permission is obtained from the city manager. The provisions of this section shall not apply to emergency searchlights or beacons operated pursuant to public authority. (Ord. No. 2005-24, §§ 1, 2, 9-6-05. 1976 Code § 10-1-15)