H.E. Williams Strip Retrofit Kit, Round Lens, Series: SRKR, 120 to 270 VAC, LED Lamp, 50000 hr Average Life, 4000 K Color Temperature, 82 CRI, Diffused Acrylic Lens, 5200 Lumens, Panel Mounting, Steel Housing Material, White Polyester Powder Coated Housing Finish, 4 ft L,