Download the firmware files and user manuals from the manufacturer's website:

https://kinoflo.com/true-match/

The following products use True Match® Firmware 5.0 DFS:

Diva-Lite LED = Version 5.0 DFS
FreeStyle LED Controllers = Version 5.0 DFS
Image LED = Version 5.0 DFS
Select LED Controllers = Version 5.0 DFS

The Celeb products use the corresponding
True Match® Firmware 5.0 CEL2, CEL4 or CEL8:

Celeb 250 = Version 5.0 CEL2
Celeb 450/450Q = Version 5.0 CEL4
Celeb 850 = Version 5.0 CEL8