We all know how energy efficient compact fluorescent bulbs are, and we’ve all been hearing for the past couple years how we should replace every light bulb in our house with a CFL. But have you ever ...

In 1976, Good Times ruled TV, Gerald Ford was trying to "whip inflation now," and in Ohio, a new kind of light bulb was being invented. The man behind the CFL looks back. Michael Kanellos is editor at ...

A new study suggests that certain types of the energy-saving lightbulbs can become damaged and then may hurt skin cells The curlicue compact fluorescent lamps (CFLs) oft touted as an Earth-friendly ...

The color temperature of a light, measured in kelvins, is its most noticeable characteristic. A candle, at 1900 K, appears orange. Daylight, at 5500 K, is much whiter and bluer. A 5500-K bulb, however ...