Detailed Product Description Recessed Downlight:Code Specification Dimension(mm) Cut-out(mm) Socket H D 101120380003 4" 80 125×125 110×110 E27,G24d-2/G24q-1101120380004 5" 80 160×160 145×145 E27,G24d-3/G24q-2*Steel trim, aluminium reflector,steel frame,white finish.*Satin nickel,chrome option.*CFL or TC-D,TC-DE version.*With frosted centre glass cover.