What Is a CFL Lamp?

CFL Lamps

• CFL lamps are fluorescent lamps utilizing mercury and can be either integrated or non-integrated. Integrated CFL lamps combine the fluorescent tube within a standard bayonet type fitment and can be used instead of incandescent lamps. Non-integrated CFLs are more complex and have two different types of tube. Manufacturers began attempting to create cost-effective and efficient CFLS in the 1970s.

Shapes and Sizes

• CFLs are available in a range of different shapes and sizes. Spirals are the most popular type of CFL, creating the same amount of light as incandescent lamps. A-shape bulbs look more like the traditional incandescent lamps, but are not always compatible with dimmers or three-way light fixtures. Other types of CFLs available are globes, tubes, candles, posts and indoor and outdoor reflectors.

Savings

• CFL light bulbs qualified for the Energy Star rating in 1999. According to the U.S. Environmental Protection Agency, using just one CFL light bulb in every American home would not only save enough energy to power the lighting for three million homes for a year, but also "save about $600 million in annual energy costs and prevent 9 billion pounds of greenhouse gas emissions."

Choosing the Right CFL

• Look out for the Energy Star logo on CFLs, as it offers a minimum two year warranty on the product. Dimmable light bulbs will be labeled, do not assume that all CFLs can be dimmed. CFL bulbs are available in a variety of different shades and colors. Select the correct CFL to give optimum light output. If you are replacing an incandescent light bulb, you should choose the CFL giving the equivalent light wattage to the lamp you are replacing.