It is unlawful for any person in a residential zone to maintain lighting upon premises under his ownership or control for any purpose between the hours of 11:00 p.m. and 6:00 a.m. in a manner so that the beams, rays, reflections or diffusions from the lighting spill out, over or onto adjoining or neighboring residential properties, as defined in the zoning ordinance of the City, so that said lighting, by its degree of intensity or duration of operation, interferes with the peaceful enjoyment of the property of such adjoining or neighboring landholders and unnecessarily or unreasonably disturbs the comfort and repose of the adjoining or neighboring landowners so as to constitute a nuisance. Protective security lighting, landscape lighting or architectural highlighting, properly directed and shielded, may be operated at all hours of the night. (Ord. 1324 § 1; prior code § 20.35.4(B)).