Abstract: The invention is an illumination assembly for illuminating a large outdoor playing field with zero candela intensity at an angle of ninety degrees above nadir, via full cutoff luminaries and full cutoff luminary assemblies. The invention also contemplates the business method associated with marketing the inventive apparatus.

Abstract: The invention is an illumination assembly for illuminating a large outdoor playing field with zero candela intensity at an angle of ninety degrees above nadir. The invention includes a support-receiving portion, a luminaire coupled to the support wherein each luminaire achieves full cut-off, and wherein each luminaire is coupled to the support in a way that the illumination assembly achieves full cut-off. The invention is also a method of enabling the reduction of light pollution in an outdoor environment by using at least one full cut-off luminaire. The invention is also embodied as a lighting system for illuminating a large outdoor playing field with zero candela intensity at an angle of ninety degrees above nadir, using a plurality of full cut-off illumination assemblies placed in predetermined locations about the playing field.