Quality Insurance: 1, Patented; 2, CE & RoHS; 3, Part "E" compliant. Specification Details:IP65 fixed bathroom downlight.1, Lampholder: GU4 20W max..2, Lamp: Halogen Lamps.3, Size of Void: 127mm.4, Dia. of Rim: 87mm.5, Dia. of cut-out: 72mm.6, Protection Class: Class 3.7.The glass was toughened. Round G4 12V 20W Fixed Bathroom Downlights