We got LED's in our entire shop, parts room, wash bay, bathrooms, all the offices, best part they were free! Government program that expired last year, contractors came in and installed everything and a straight dollar for dollar tax credit paid the bill. The bulbs were installed in the old fixtures after removing the ballast. They are voltage sensing and will be just as bright on 24 volts as 240. Way brighter than HD fluorescents or whatever those skinny newer ones were called.
You know, I might be able to get a tax credit on these. I'll ask my CPA about that!