When the Energy Independence and Security Act (EISA) was passed in 2007, among its provisions was the eventual phasing out of the familiar (but notoriously inefficient) incandescent light bulb, which wastes 90 percent of its energy use as heat, not light.
When the Energy Independence and Security Act (EISA) was passed in 2007, among its provisions was the eventual phasing out of the familiar (but notoriously inefficient) incandescent light bulb, which wastes 90 percent of its energy use as heat, not light.
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