Optics ain't my strong suit. I freely admit that. However, I have a 1000 square foot single story steel shed I am lighting from photovoltaics and batteries/inverter. For a given amount of illumination per square squird of floor area, what is the most economical and efficient method of lighting? Plain old fluorescent fixtures? Compact fluorescent bulbs? Some other (relatively inexpensive) technology I'm not aware of? Are all fluorescent fixtures the same efficiency or are some designs/brands better than others? Same with compact fluorescents?
I'd rather spend a little money to make the lighting efficient so that I can run the spectrum analyzer and sig gen a little longer from available power sources.
Jim