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It used to be so easy, but have you been to the bulb aisle at the local hardware store recently? Incandescent, halogen, LED, CFL, daylight, soft white, watts, lumens ... here's what we need to know about lighting our world (infographic): http://www.mnn.com/earth-matters/energy/stories/shining-a-light-on-energy-efficient-light-bulbs-infographic
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