Compact Fluorescent Light Bulbs

Three great reasons to use Compact Fluorescent Light Bulbs:

They use 60% to 75% less energy than incandescent bulbs
They last 5 to 7 years or more
They come in many color temperatures and sizes to fit any light fixture

Buying Guide

Watts needed by each bulb to produce the same amount of light

Incandescent	Compact Fluorescent	Lumens
40 watts	14 watts	>450
60 watts	15 watts	>800
75 watts	20 watts	>1,100
100 watts	26–29 watts	>1,600
150 watts	38–42 watts	>2,600

Cost

The price for most CF bulbs is $4 to $7; specialty bulbs run $15 to $20. Although more expensive than incandescent bulbs, they last 6 to 10 times longer. Try to use CF bulbs in fixtures you use the most. Consider replacing bulbs in the overhead kitchen light, living room lamps, bathroom vanity lights and outdoor porch or post lamps.

Specialty Fixtures

Check the CF bulb packaging to see if it is manufactured to work with a dimmer switch or for outside use before you buy it for one of those applications. CF bulbs do not work with touch lamps and electronic timers. If the timer is a mechanical on/off type, CF bulbs should work. Save the receipt and packaging for a CF bulb until you know that it works in your fixture.

How do they work?

Compact Fluorescent (CF) bulbs are more efficient compared to incandescent bulbs because they don’t produce heat. Incandescent bulbs work by heating a filament inside the bulb which shines bright white, using 90% of their energy to produce heat. CF bulbs work by energizing a gas that produces an invisible ultraviolet light. This light illuminates the phosphor white coating inside the bulb. In new CF bulbs it takes less than a second for the electricity to ignite the gas inside the bulb and produce light.

Are Compact Fluorescent bulbs safe?

CF bulbs require a small amount of mercury to help them start. The volume of mercury used in one bulb would only fill the size of the period at the end of this sentence, so it is not harmful to use CF bulbs in you home.

Compact Fluorescent bulb disposal

If one of your Compact Fluorescent bulbs breaks, sweep it up into a bag and seal it. The City of Columbia’s Household Hazardous Waste Facility collects all types of fluorescent bulbs. Located at 1313 Lakeview, one block west of the City power plant, the facility is open on the first and third Saturdays of the month, from April through November, 9 a.m. to 1 p.m.