Recently, California introduced a new standard for the energy efficiency of 100W incandescent lamps. A 100-watt bulb manufactured on or after January 1, 2011 must use 28% less energy in California states, with providing the same amount of light (in lumens).

The Energy Independence and Security Act of 2007 (EISA) designed the law, which would reduce energy use and associated pollution and make the United States less dependent on foreign sources of energy. Also, the law would save California consumers money.

California Energy Commission (CEC) noted, the standard would be adopted in the rest of the USA, on January 1, 2012. And this year about 10.5 million inefficient 100-watt bulbs would be demission in California, which would cost consumers $35.6 million in higher electricity bills.

Approximately 90% of the electricity used by traditional incandescent bulbs is wasted as heat instead of visible light. Replacing traditional incandescent light bulbs with more efficient halogen, compact fluorescent bulbs (CFL) or LED bulbs will save consumers money while still offering same amount of light.

Meanshile, the standard didn’t affect the existing supply of incandescent light bulbs stocked in retail stores or incandescent light bulbs already in use.

Except, a new standard covering 75W lamps would be introduced in California on January 1, 2012, and standards for 60W and 40W lamps would follow one year later.