Before you replace every bulb in your house with CFLs, there are a few limitations. Future technology will improve or eliminate these limitations.
Flood Front View
Compact Fluorescent (CFL) -
CFLs for the home have a built-
CFLs may not be as bright as their incandescent equivalent wattage bulb. Check the lumens rating on the package and compare to the lumens chart on the Light Bulb Packaging Info page.