Posachedwapa, kuwala kwa SCL 500W LED Sports Stadium (QDZ-500D) yavomereza "Guangdong High-tech Product Certification", yokhala ndi kuwala kwapamwamba komanso anti-glare.Izi zikuwonetsa kuti SCL yakwera pamlingo watsopano muukadaulo waukadaulo waukadaulo wa LED.Ndichitsimikiziro chinanso chovomerezeka champhamvu yaukadaulo ya SCL.