Lithonia Lighting® Troffer, General Purpose, Series: 2GT8, 120 - 277 VAC, T8 Fluorescent Lamp, 32 W Lamp, Bi-Pin Lamp Base, 3 Lamps, Grid Recessed Trim, White Light, Acrylic Shade, Electronic Ballast, Acrylic Lens, Ceiling Mount, Steel Housing, 48 in L x 24 in W x 3-3/16 in D