Beyond LED Technology ELITE LED Flat Panel Light Adj Watt 24/29/32/39 4875 Lumens Adj CCT 3500K-4000K-5000K 120V-277V 2'X2' W/Battery Back up DLC Listed Pack 4 in the LED Panel Lights department at
LEDVANCE 1 ft. x 4 ft. 4200 Lumens Integrated LED Panel Light, Selectable CCT 62605 - The Home Depot
LEDVANCE Sylvania 2 ft. x 4 ft. 40W LED Integrated Edge-Lit Panel Light 3500K CCT with Emergency Battery Backup, 4200 Lumens, White (74241) - Amazon.com