... SOURCES ARE OPTIONAL 3,HIGH LUMINOUS EFFICACY 4,WITH CE,ROHS,FCC APPROVAL New Design LED Ceiling Light Characteristics1 ... Application : shops,hotels, exhibition halls, libraries, home decorating etc.CodeInput VoltageInput PowerColor TempCRILuminous FluxLuminous EfficacyBeam AngleLRL107100V ... for 2700K-3200K and 5500K-6000K are availableNew Design LED Ceiling Light with CE,ROHS,FCC Approval. new design ...