GROUP RISTARtọrọ ntọala naIstanbul, Turkeyna 2015, na-etinye LED ngwaahịa na mbụ kemgbe mmalite nke ya azụmahịa ndụ na mba ahịa.Dị iche icheỌkụ LED & akụkụ SKD(ọkụ ọkụ, mgbawa edu, PCB, ọkwọ ụgbọ ala, eriri, wdg) nọ n'okpuru mmepụta RISTAR na ụlọ ọrụ Turkey ya na ụlọ ọrụ na-eketa òkè na China.