The debut of the "18 Seconds Movement" encourages Americans to replace incandescent light bulbs with more energy-efficient "compact fluorescent bulbs." You'll see ads on the Internet and in movie ...

Few products in recent history have been as disruptive as the compact fluorescent light bulb ... that manufacturers must ensure that 40-watt bulbs draw no more than 10.5 watts of energy ...

Dear EarthTalk: Can those energy-efficient compact fluorescent ... amount of light a bulb gives out (watts measure the energy use of a bulb, not the light generated). A 40-watt incandescent ...