I am currently using 8' T12 HO light fixtures in my shop and I would like to retro-fit these for 4 T5 bulbs. Is this the correct kit for this conversion. Will I need to purchase an electronic ballast as well? If so, what part number?
Also, the picture is not clear enough for me to see, but it looks like there is a clear convex plastic difuser attached to the reflector. Is this the case or is it just an illusion in the picture?