Quality Insurance: 1, Patented and meet RoHS; 2, CE certificate available. Specification Details:Energy-saving lamp standard downlight.1, Lampholder: YPZ220/13W.2, Lamp: CFL Lamps.3, Size of Void: 55mm.4, Dia. of Rim: 148mm.5, Dia. of cut-out: 120mm. CFL Standard Downlight