Lithonia Lighting Contractor Select GT 2 ft. x 4 ft. Integrated LED 4000 Lumens 4000K 120V Commercial Grade Recessed Troffer 2GTL4 A12 120 LP840 - The Home Depot
GTL Series - GT Series General-Purpose Recessed LED Troffer
Lithonia 2BLT4 40L ADP LP835 31 watt LED 2' x 4' Troffer Light Fixture – Lighting Supply Guy
Lithonia Lighting GTL 24 in. x 48 in. 128-Watt Equivalent Integrated LED White Troffer Light 4000K 2GTL 4 70LHE GZ10 PWS1836 LP840 - The Home Depot
Lithonia Lighting® 2GTL 4 40L EZ1 LP850 General Purpose Indoor Troffer, (4) LED Lamp, 120 to 277 VAC, Steel Housing | State Electric