When I switched my home over to CFC light bulbs, it was one key piece that led to Seattle Public Utilities reporting it more efficient than others its size. However, my living room lights were always super bright which was annoying in the later evenings.

I finally switched to Phillips Hue bulbs and can now adjust the brightness and color of my home lighting from my iPhone and laptop. There are also a variety of scenes, timers and security options. I highly recommend them.