1. If every one of 110 million American households bought just one ice-cream-cone bulb, took it home, and screwed it in the place of an ordinary 60-watt bulb, the energy saved would be enough to power a city of 1.5 million people.
2. Compact fluorescents emit the same light as classic incandescents but use 75% or 80% less electricity.
3. A $3 swirl pays for itself in lower electric bills in about five months.4. Compact fluorescents, even in heavy use, last 5, 7, 10 years. Years. Install one on your 30th birthday; it may be around to help illuminate your 40th.
5. The single greatest source of greenhouse gases in the United States is power plants–half our electricity comes from coal plants. One bulb swapped out: enough electricity saved to turn off two entire power plants–or skip building the next two.
6. In terms of oil not burned, or greenhouse gases not exhausted into the atmosphere, one bulb is equivalent to taking 1.3 million cars off the roads.
7. Last year, U.S. consumers spent about $1 billion to buy about 2 billion lightbulbs–5.5 million every day. Just 5%, 100 million, were compact fluorescents.
8. In the next 12 months, starting with a major push this month, Wal-Mart wants to sell every one of its regular customers–100 million in all–one swirl bulb.
9. Early CFLs cost $25 per bulb (and still paid for themselves in electricity savings). The light they produced was bluish or pinkish, or varied; the phosphor coating had to be refined. The ballast–built into the bulb rather than in a separate fixture, as with traditional fluorescent tubes–hummed and didn’t cycle the electricity quickly enough; it had to be made electronic and miniaturized. Costs came down, as did size. The same wizardry that gives us Hallmark birthday cards that play “Love and Happiness” makes possible CFLs at $2.60 instead of $25.
10. A 60-watt classic bulb and a 15-watt swirl are identically bright–the swirl just uses 45 fewer watts. Source: FastCompany
