The Scale and Impact of Sports Stadium Grow Lighting Systems In England by Steve Geliot, Jacqueline Coesfeld, Christopher C. M. Kyba

“…These lights supplement winter sunlight, which is sometimes insufficient due to the low elevation of the sun and shading from the surrounding walls. In many stadiums, grow lights are operated at night, and the waste light emissions from these stadiums are extraordinary in comparison to most other areas in the cities in which they are located. …”
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