*Our post yesterday represented the first in a week-long series about the upcoming incandescent phase out as a result of the EISA 2007. If you missed it, catch up here.*

* * Yesterday, we mentioned that the EISA 2007 does not ban incandescent A-line light bulbs; however, the new law will, in fact, result in the elimination of today’s standard 100W, 75W, 60W, and 40W light bulbs.

If you’re thinking there’s a discrepancy here, read on.

The EISA 2007 sets “maximum rate wattages.” In other words, light bulbs will be required to consume less electricity (measured in watts) for the amount of light produced (measured in lumens).

Each category of “lumen ranges” that the EISA specifies corresponds with one of today’s standard incandescent bulbs. See the chart below:

Lumen Range | Wattage: today’s incandescent bulbs | New Maximum Rate Wattage under EISA 2007 | New Minimum Rated Lifetime under EISA 2007 | Effective Date |

1490 – 2600 | 100W | 72 | 1,000 hours | 1/1/2012 |

1050 – 1489 | 75W | 53 | 1,000 hours | 1/1/2013 |

750 – 1049 | 60W | 43 | 1,000 hours | 1/1/2014 |

310 – 749 | 40W | 29 | 1,000 hours | 1/1/2014 |

Here’s a simpler version of the same information: