How To Choose a Compact Fluorescent Light Bulb

Note the size, shape, and location of your light fixtures.

Calculate how many watts your new compact fluorescent bulbs should have. CFLs use about a quarter of the energy to produce the same light, so replace your old bulbs with fluorescents with one quarter the watts.

Look for CFLs that are marked with the government rated Energy Star label, indicating that they’re the most efficient bulbs.

Note the color of light the new bulbs produce, and choose ones that produce the right amount and color of light for your fixture.

Compact fluorescents are a bit larger than the old bulbs, so refer to any measurements you took of your fixture to make sure the size and shape of the bulb will work.

Dispose of your fluorescent bulbs properly at the end of their very long life. The tiny amount of mercury inside them should be recycled, not tossed in a landfill.