entimeters | In the U.S. the traditional incandescent lightbulb will be ^ectively outlawed by 2014. Right now, many fluorescent alternatives contain loisonous materials and give off harsh white light, and they are largely un-lopular with the American public. So the race is on to create an energy-efficient iulb that gives off the familiar warm glow we've come to love. Switch Lighting nay have an answer. Its 60- and 75-watt-equivalent lightbulbs contain LEDs that oive off yellow light and (unlike fluorescents) can be used with dimmer switches. Switch bulbs cost about $20 but use a small fraction of the energy that incandes-cents do (for example, the 60-watt-equivalent bulb uses only 12.5 watts) and have a life span of 25,000 hours, or 20 years. The bulbs are due to be released in early 2012.
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