I build a 10 ft long work bench in my new pole barn. Then I bought a couple 4ft. 2 bulb flourescent lights to have above it. My ceiling is 14 ft high. What do I do? Buy extra chain and hang these down from the ceiling? What height should they be? Would I be be better off to build a bracket out from the wall maybe 10 ft. high for these lights? I would like your input