Industrial lighting?

[ScubaSteve]

I wouldn't call the reflectors junk. They are specifically designed to give an even light distribution from a pendant bulb, however, at a distance (they're meant for high bay applications after all). High bay reflectors are about efficiency AND economy. Aquariums really weren't in mind for their design. Because you will have them closer that their intended application there might be some bright spots but don't see any reason why, for a cheap set up, they wouldn't work.