... hole diameter 130mm,H 6mm.Packing Picture:LED ceiling light and driver are seperately packed: Typical Features of LED Ceiling Light ... signature of the responsible.Driver Certificates and Patent in Germany, USA,Australia, Taiwan and Japan Power Factor > 96%:,Driver with PSE,UL, ... housing about 80lm/w2).Driver Efficiency >90% in reality3).CRI>82Ra,subject color is real and nice4).Heat Dissipation,housing ...