New construction frame-in with collar for pre-wiring and easier layout planning. Dimensions: 11.94" x 7.68" Compatible Fixtures: NCSC-R4D1TW: 4" Contractor Series Can-less Deep Downlight NCSC-R4W2TW: 4" Contractor Series Can-less Wafer Downlight NEFLINTW-R4: 4" FLIN Wafer LED Downlight NFLAT-R4TW: 4" FLAT Wafer LED Downlight NFLINA-R4TW: 4" FLIN Adjustable LED Downlight NIOC-4RSP: 4" Iolite Can-less Sloped Downlight NM4-R470: 4" M4 Round LED Adjustable Elbow NM4-RG: 4" M4 Round LED Adjustable Gimbal