article which gives more details.
My only hope is that we go farther in our lighting technology to emulate the wonderful light an incandescent gives off in a more efficient way. It's getting better, but there's nothing I'm excited to use as a great substitute. LEDs (light emitting diode) and other low voltage lights usually give clean looking light but are weaker. I love to use natural lighting as much as possible but obviously, you will have to turn on a light at some point in the evening or on a cloudy day. Lighting can affect greatly how color is cast in a space so this topic is very important to my line of work.
I thought this t-shirt design my husband found for me from threadless.com would shed some humor on the subject: It's a lightsaver!
Images from google images and threadless