RAB, SR4/E, Strip Light, Field-Adjustable, Series: SR, 120, 208, 240, 277 V, 20.1 to 42.6 W Fixture, 0.07, 0.08, 0.10, 0.11, 0.13, 0.14, 0.17, 0.19, 0.25, 0.33 A, Green Lighting Technology, LED Lamp, 40, 30, 20 W Lamp, 140.2 to 163.7 Lumens/W Light Output, 50000 hr Average Life, 5000, 4000, 3500 K Color Temperature, 83 to 84 CRI, Polycarbonate Lens, 3155 to 6174 Lumens, J-Box Mounting, Iron Housing Material, White Housing Finish, 4 ft L Dimensions,