SHOCKING STAT OF THE MONTH

4 BILLION Number of U.S. lamp sockets fitted with general-service incandescent light bulbs Source: The National Lighting Bureau, Silver Spring, Md.
Sept. 1, 2007

4 BILLION

Number of U.S. lamp sockets fitted with general-service incandescent light bulbs

Source: The National Lighting Bureau, Silver Spring, Md.

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