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Compact Fluorescent Lightbulbs
Light Bulbs
What You Should Know About Incandescent vs. Compact Fluorescent Bulbs.
Like other energy-saving devices favored in a new surge in conservation, initially high-cost compact fluorescent lights return value power in the long run by using less power and lasting longer.
| 75-watt Incandescent | 20-watt Compact Fluorescent | |
| 50 cents | Cost per bulb | $5 |
| 75 | Power consumed (in watts) | 20 |
| 1,200 | Light produced (in lumens) | 1,200 |
| 1,500 | Longevity (hours) | 10,000 |
| $9.3 | Operating cost 1 per year | $2.50 |
1- Assuming four hours use per day for 365 days.
Source: www.keepwarm.illinois.gov.