... structure. (3) Arcylic panel, silk prink frame, Professional LED lighting source. Ultra slim, four side open.(4) Long ... life time 60000HOURS,3W-6W/light. Tianzhong brand Cyrstal Led light box, High quality and competitive price. The crystal ... proposal, like hanging, screwing etc. ** Frame material is crystal Acrylic; Surfaces applied advanced diamond polishing technology, elegant and attractive; ** ...