Replacing lights with CF bulbs

44% of members are saving with this action!

Save up to 1,600 kg / 3,520 lbs CO2 and up to $250 per year!

CF light bulbs provide a tremendous energy and emissions savings. They are slightly more expensive up-front but last many times longer and typically pay themselves off within several months, leading to large savings over several years.

The costs and benefits here are a range around the assumed household averages of at least 23 light sockets. A range of 2-6 hours of use each per day is assumed.

The only potential drawback of CF bulbs is the presence of a small amount of mercury, which means they should be disposed of properly. New CF bulbs are coming available that contain less than half the mercury of current models. This concern needs to also be balanced with the reduction in all forms of polution from carbon-based electricity generation with the lower energy requirements.

Benefits and costs

Annual CO2 Savings500 - 1,600 kg
1,100 - 3,520 lbs
Annual Cash Savings$80 - $250
Initial Cost$46 - $115
Time to pay for itself0.0 - 1.0 years
CO2 saved per year per initial dollar invested4.35 - 34.78 kg

* These value ranges were taken from many sources including product documentation, published reports, and the reference material linked here.

If everyone did this ...

If every household in the US did this, it could save a collective 211,200,000 tons of CO2 per year!

This would be equivalent to:

  • Taking 41,411,765 cars off the road for a year
  • Producing 15,879,699 tons of Beef

Visit How Much CO2 Is That? for more information.

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