[mayurpathak]

You probably might want to make a study project. Take lights of different watts and different make including a CFL. Try them at odd hours and monitor the consumption of energy by each (I dunno how). Also record the lux. Depending on the findings, suggest the best light and or combination of lights at different hours. You might also suggest the wiring mechanism. I heard some wires are better transporters of electricity than others.

Biggie can possibly help. He is a Electrical Engineer!