Lithonia Lighting Contractor Select BLC 2 ft. x 4 ft. 128-Watt Integrated LED White 4000 Lumens Center Basket Troffer, 3500K BLC 2X4 4000LM 35K - The Home Depot
Lithonia Lighting BLC 2X4 4000LM 50K White / 5000K BLC Single Light 48" Wide Integrated LED Troffer - LightingDirect.com