Switching to Compact Fluorescent Lighting
Finding the Right CFL
Different Light Levels and Colors
CFLs provide the same amount of light (lumens) as traditional bulbs, but use less energy (watts).To find the right CFLs for your home, check the lumens listing on the packaging. Choose the lumen level that relates to the incandescent wattage you’re replacing.
So, if you are looking for a light bulb that gives off the same amount of light as a 60-watt incandescent bulb, look for an ENERGY STAR qualified CFL that puts out 800 lumens or more.
Light Output Comparison
| Incandescent bulb (Watts) | CFL (minimum lumens) |
| 40 | 450 |
| 60 | 800 |
| 75 | 1,100 |
| 100 | 1,600 |
| 150 | 2,600 |
Choosing the Right Color
In the past CFLs were mainly one color, a cold white that provided a ghostly "institutional" glow (and a buzzing sound) that many found unpleasant. CFLs now have a Correlated Color Temperature (CCT) that will help you choose the right bulb for the right environment.
Look for CFLs with a CCT range between 2650 and 3200 degrees Kelvin (K) for a warm light very close to incandescent bulbs.
Color Measurements
| Color | Kelvin |
| Warm White (Yellowish-White) | 2650 - 3200K |
| Neutral | Neutral |
| Cool (Bluish-White), Also Called "Daylight" | Above 4000K |
Where to Buy Compact Fluorescent Lighting
For more information, including reviews, about CFLs, check out
The Environmental Defense Organization