RAB TREADSAFE™ Stairwell Light Fixture, Series: TSLED, 120/208/240/277 VAC, 35 W Fixture, 0.14/0.15/0.18/0.3 A, LED Lamp, 36 W Lamp, 114 Lumens/W Light Output, 100000 hr Average Life, Neutral White Light, 4000 K Color Temperature, 84 CRI, 0 to 10 VDC Dimming/Constant Current Ballast, Soft-Glow Acrylic Lens, 4004 Lumens, Surface Mounting, Cold Rolled Steel Housing Material, White Housing Finish, 4 ft L x 5-7/16 in W x 2 in H Dimensions