Detailed Product Description Recessed Downlight:Code Specification Dimension(mm) Cut-out(mm) Socket H D 101120620003 6" 135 190×190 155×155 E27,G24d-2/G24q-2101120620004 8" 135 230×230 195×195 E27,G24d-3/G24q-2*Zinc alloy trim, aluminium reflector,steel frame,satin nickel finish.*Chrome,white option.*CFL or TC-D,TC-DE version.*Drop down glass with frosted centre and clear surround.