... low lumen deprecition,dust protection,leakage protection. Soft light,no flicker,no dark,no shadow,no glare ... lumen,high efficiency,high CRI and well-distributeed light,bottom-emitting lighting. Ultra thin,beautiful appearance ... composed of PMMA cover,aluminium farame and Optical light guide plate etc. Stable performance,good heat ... to get more information about 50W panel lightWelcome to visit our factory