2" x 4", Metalux 4 Lamp, T8 Fluorescent Recessed Troffer, Residential Use, 120V, Residential Energy Saving T8 Ballast, Baked White Enamel, Flat White Steel Door With Mitered Corners, Cam Latch/Safety Hinge, 1 Piece Die Embossed Housing, #12 Acrylic Refractor/Lens, For Use In Residential Locations Only As Ballast Will Not Interfere With Common Household Appliances & Frequencies, Uses 4 - F32T8 Lamps, Not Included, UL Listed, IBEW Labeled.