Compact Fluorescent Light (CFL) Bulbs Overview
Switching from traditional light bulbs to CFLs is an effective, easy
change that many Glendale homeowners are making to reduce energy use and
prevent green house gas emissions that lead to global climate change.
Lighting accounts for close to 20 percent of the average household’s
electric use. Compact fluorescent light bulbs can save up to 75 percent
of the energy you spend on your home lighting.
Changing to CFLs costs a bit more upfront, but they last 6 to 15
times longer (6,000 to 15,000 hours) than regular light bulbs and
provide huge energy-savings
in areas where lights are on for longer periods of time. One $3.50 CFL
can save over $60 in electricity over the life of the bulb.
The CFLs GWP mailed to your home through our Smart Home Energy Efficient
Lighting Program contain 1mg of mercury, the lowest amount of mercury
compared to all other CFLs on the market today. That is 75% less than
a 4mg found in standard CFL bulbs.
Changing to CFLs costs a bit more upfront, but they last 6 to 15 times longer
(6,000 to 15,000 hours) than regular light bulbs and provide huge energy-savings
in areas where lights are on for longer periods of time. One $3.50 CFL can save
over $60 in electricity over the life of the bulb.
If every home in Glendale replaced a single regular light bulb with a CFL, we would:
- Save enough energy to light more than 518 homes for a year.
- Save more than $992,800 in annual energy costs.
- Prevent greenhouse gases equivalent to the emissions of more than 359 cars
All of those savings with just a single bulb replace, imagine the savings if
every light bulb in Glendale was replaced!
How Should I Clean Up a Broken Fluorescent Bulb?
Because CFLs contain a small amount of mercury, EPA recommends the
following clean-up and disposal guidelines for all mercury related
- Air Out the Room
- Have people and pets leave the room, and don't let anyone
walk through the breakage area on their way out.
- Open a window and leave the room for 15 minutes or more.
- Shut off the central forced-air heating/air conditioning
system, if you have one.
- Clean-Up Broken CFL
- Carefully scoop up glass fragments and powder using stiff
paper or cardboard and place them in a glass jar with metal lid
or in a sealed plastic bag.
- Use sticky tape, such as duct tape, to pick up any remaining
small glass pieces and powder.
- Wipe the area clean with damp paper towels or disposable wet
wipes. Place towels in the glass jar or plastic bag.
- Do not use a vacuum or broom to clean up the broken bulb on
- If vacuuming is needed to clean up spills on carpeting,
after all visible materials are removed, vacuum the area where
the bulb was broken.
- Remove the vacuum bag (or empty and wipe the canister), and
put the bag or vacuum debris in a sealed plastic bag.
- Immediately place all clean-up materials outdoors pending
removal to the Household Hazardous Waste Collection Center (see
- Wash your hands after disposing of the jars or plastic bags
containing clean-up materials.
- Glendale residents can take their broken or burned out CFLs
to Glendale’s Household Hazardous Waste Collection Center
located at to 780 Flower Street, Glendale, CA 91201 (818)
Recycling Used CFLs
Like most electronic equipment, batteries and computers, fluorescent
bulbs and ballasts, including CFLs should not be tossed out with the
trash when they eventually burn out. Current regulations require that
electronics and CFLs should be disposed of at a Household Hazardous
Waste Collection Center. For more information visit the
Glendale Fire Department
website or call (818) 548-4030. Local Home Depot stores also recycle
Media Coverage of Mercury in CFLs
Media outlets have been reporting on CFLs containing a small amount of
mercury in recent months. For perspective, the amount of mercury in the
CFL GWP sent out is about 1/500th of the amount of mercury found in a
newer mercury fever thermometer, and about 1/2500th the amount found in
older household thermometers. That means it would take 500 of the CFLs
we mailed to equal the same amount of mercury in a newer thermometer,
and 2500 to equal the amount in an older fever thermometer. The amount
of mercury in four of our light bulbs would cover the tip of a ballpoint
A Word About Mercury
As with all products containing mercury, special precautions should be
taken if they break. No mercury is released when the bulb is being used
or is intact (not broken). In instances if the bulb does break,
customers can follow these procedures below as a precaution.
Mercury is an element (Hg on the periodic table) that is found naturally
in the environment. Mercury emissions in the air can come from both
natural and man-made sources. This silver-colored liquid metal can be
found in rocks, soil and the ocean. As a liquid metal at room
temperature, mercury has been widely used throughout industry. Man-made
sources of mercury include abandoned mines, energy production, sewage,
industrial processes, mining, smelting, scrap metal processing, and
incineration or land disposal of mercury products or waste.
How can I find more information?
Note that the EPA is continually reviewing its clean-up and disposal
recommendations for CFLs to assure that the EPA presents the most
up-to-date information for consumers and businesses. For more
information about CFLs and fixtures, visit the
Department of Energy's website or visit