i dont know if this link is factual or a fraud or not???
"Tennis club 'Volley' in Eindhoven, the Netherlands, is the first in the world to employ a fully LED illuminated tennis court."
"LED lighting for sports venues not only results in energy savings due to lower power consumption (typically 30–40%.). In practice the savings can be as high as 50% .........."
"The lighting system is dynamic and complies with all relevant standards for luminosity per surface area. ........."