These are general purpose commercial recessed flat-panel LED lighting, brand new in box.
Day-Brite CFI 2FXP42B835-4-DS-UNV-DIM
4 panels total:
2' x 4' panel
LED
4200 lumens
3500k
$150 for all 4 panels. These would be great for extras for the office, replacement parts, or use them for a fresh install!