I permanently installed two of the lights and swapped the tubes out for the LED tubes.
These are just the cheap 4' tube fixtures from Lowe's at about 28.00 each with GE LED tubes added...I shot a ceiling clip to the metal pan deck and used 3 links of the chain included with the fixtures and bolted them up...Just plugged them in and they're finished...If ever needed I can unbolt them and swap them out in the future if anything happens...