This is a custom made LED light assembly to replace the top light assemblies of many blast cabinets. It is has 4 24 VDC LED strips and comes with a 120VAC to 24 VDC power supply. It is  about 18 inches long and about 2 inches wide and would be mounted on an adapter plate for those cabinets. It can also be used alone but you will need to fit to your application with dimensions supplied with the light.  In the picture, the front of the light is in the foreground showing the on/off switch and the back is shown in the background showing the power jack.