Change a Light, Change the World Light Changing As a Spiritual Practice For Unitarian Universalists Home Energy For Lighting About 2/3 of the electricity used in homes was used to operate appliances, refrigerators, and lights
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As a Spiritual Practice
Using a 20 watt CFL instead of a 75-watt incandescent will result in saving 1,300 pounds of carbon dioxide over the life the bulb.
The Australian government has announced plans to phase out incandescent light bulbs and replace them with more energy-efficient compact fluorescent bulbs across the country.
Legislation to gradually restrict the sale of the old-style bulbs could reduce Australia's greenhouse gas emissions by 4 million tons by 2012 and cut household power bills by up to 66 percent.
91-98% on the color
Recommended light levels will vary based on the person and the task.
When purchasing light bulbs, however, don't assume that more watts means more light.
Only more lumens means more light.How to Choose
Correlated color temperature (CCT) (Degrees Kelvin).
Relates to the color of light produced by a light source.
Imagine a piece of tungsten metal being heated. As it is heated the color of the metal will gradually shift from red to orange to yellow to white to bluish white.
The color of light is measured along this scale, with the more orange color light being referred to as "warm white" and the whiter color light being referred to as "cool white".How to Choose
Relates to the way objects appear under a given light source.
CRI = "color rendering index."
A low CRI indicates than objects may appear unnatural under the source.
A high CRI rating will allow an object's colors to appear more natural.
For lights with a "warm" color temperature the reference point is an incandescent light.
For lights with a cool color temperature the reference is sunlight.How to Choose
Sylvania Brilliance Desk Lamp
Southern California Edison Proposes Providing Energy-Saving Compact Fluorescent Bulbs to 1 Million Low-Income HomesThursday April 12, 9:00 am ET
ROSEMEAD, Calif.--(BUSINESS WIRE)--
"Achieving California's groundbreaking greenhouse gas (GHG) reduction goals will require big, bold energy initiatives and strong partnerships between the state, its utilities, and residential and business customers," said Michael R. Peevey, president of the California Public Utilities Commission.