My church's gym is currently being lit with twelve old (and I mean OLD ) high wattage incandescent fixtures. I have proposed a total upgrade with 4 lamp T5 industrial grade highbay fixtures with guards. Now, here's the dillema. One of my church elders opposes this idea and thinks that similar performance can be obtained using the existing fixtures. Now, I don't know about you, but CFLs don't exactly give the same amount of light as a 4 lamp highbay.