Here is a photo of the metal halides and the T5's the day I removed them from my canopy:
A close up of the day they were installed:
And a picture of my foot next to the Galaxy ballast (it was a size comparison shot). One of these is for sale as I am using the other on my tank still.
The reason I am selling this is because I removed all of these lights and installed 3 large Lumenmax elite reflectors, hence not needing the extra ballast and everything else.