<http://schema.org/about>
"What's hot in restaurant design these days? Retro light bulbs, of the old, carbon-filament power-sucking kind. And the warmer the light, the less efficient they are, some running under 2 lumens per watt. (a fluorescent"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/interior-design/hot-new-trend-old-fashioned-incandescent-lightbulbs.html>