All exterior lighting shall be provided with lenses, reflectors or shades, so as to concentrate illumination on the property of the owner or operator of the illumination devices. Rays of light shall not pass beyond the property lines of the premises utilizing the illumination at an intensity greater than three footcandles measured at property lines abutting residentially zoned property, or ten footcandles measured at property lines abutting street right-of-way or nonresidentially zoned property. No glare shall emanate from or be visible beyond the boundaries of the illuminated premises.
(1989 Code, § 11.73)