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energy efficient

  1. Low vs. Normal - Bouncing Ball effeciency feedback

    Chevy Volt Engineering and Design
    People here seem to think that driving in low mode is more energy efficient than driving in normal mode. At first I was buying into that. However, as I started thinking about what the bouncing ball is trying to tell us I'm not so sure. I suspect that the ball is staying in the center, for...
  2. Philips Ambient LED Light Bulbs - First-hand experience

    Politics, Finance, and Environment
    Well, I don't have a Volt (yet) that I can brag & write about. But I did just buy 3 Philips Ambient LED lightbulbs from Home Depot. Here's a pic: They're quite pricey, about $40 each. But the appeal for me is that they can be used on dimmer switches (which effectively eliminated CFLs) and...