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
Lithonia Lighting 2 ft. x 4 ft. 3-Light Silver Multi-Volt T8 Fluorescent Parabolic Troffer 2PM3N G B 3 32 18LD MVOLT 1/3 GEB10IS - The Home Depot
Lithonia Lighting 4-ft x 2-ft Medium Bi-pin (t8) Troffer at Lowes.com
Lithonia Lighting BLC-2X4-ADSM DLC Listed 2X4 LED Center Basket Troffer Light Fixture
Octo Lights Astronomy Fluorescent Light Covers for Ceiling Lights - For 2x4 Light Fixture - by Octo Lights | Wayfair