We take lights for granted when they're working (unless the electric bill gets to high). We may soon have another lighting choice that is efficient and puts out the correct color for our eyes.
http://www.popsci.com/science/article/2012-12/new-kind-lighting-could-replace-fluorescents-cfls-and-leds-light-source-future?src=related&con=outbrain&obref=obinsite
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