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Board Members:

Chairman
Robert Stearns
Vice-Chair
Bill Calkins

Yvonne Lewis
Director

Michele Elliott
Director
(No photo
available)
Lauri Bettencourt
Chief Dave Ebert
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Compact Fluorescent Lamps (CFLs) |
ARE THEY SAFE?
I would have presumed that screw base, compact fluorescent lamps (CFLs)
were always safer than incandescent bulbs because they operate so much
cooler, which should minimize the chance of combustible material igniting
should it touch the bulb. However I received a report by a consumer who
used a 14 Watt Luminus brand CFL purchased at Costco which went
defective & started to smoke, here is what he said. "There was
no actual flame, but it filled the globe (sealed light fixture) with very
acrid smoke and then the smoke began to fill the hall. We were moving
about in the hall at that particular moment and discovered the problem
almost immediately. Whether the bulb will actually flame if left in a
socket I don't know. It was powerful hot in that globe when I took it out
and still actively belching smoke..." This was the
potential first fire hazard incident I had heard of with CFLs, but it
illustrates that a problem can occur. I have heard of fires caused by
incandescent bulbs that were too high Wattage for the fixture they were
installed in, or where they came in contact with combustible material
(drapes, covers & lampshades, etc). Besides problems with some Luminus
brand CFLs, some Pricemark
bulbs can be a hazard
too. Note any bulbs listed below as having a safety
hazard in red.
CFLs that belch smoke, usually do so from the white base that contains
electronic components (ballast). General Electric formerly had on their
web site an explanation of "End Of Life" sensing protection that
can prevent smoke, something all CFLs should incorporate. As a general
rule, a CFL bulb that smokes does not catch fire because it is contained
within the white ballast, but it sometimes scares consumers enough that
they don't want to use CFLs.
The Electrical Safety Authority
has issued a warning
about the way CFLs expire at the end of their life. The Ontario
Fire Marshal's Office
also looks into CFL safety. If you have the FCC ID number from the base of
the CFL, you can go to the U.S. Federal
Communications Commission
site & often see pictures of the parts used on the inside of these
CFLs. Another organization to complain to if you are a U.S. citizen &
have a CFL safety issue is the U.S.
Product Safety Commission.
Some CFLs packaging indicates that the bulb contains mercury,
which should be disposed of
according to your locals laws, or call Lamp Recycle at 1-800-555-0050 or
1-800-435-4448. The mercury is contained in the sealed glass tube &
presumably is not a safety hazard unless the glass gets broken (in which
case don't breath near the tube). The amount of mercury is extremely
small, but the bulb should not be disposed of with regular household
garbage.
Some "Fieldbreeze"
brand CFLs sold in dollar stores
are not safety rated
& are an extreme safety hazard.
One model of Globe brand CFL has a UL stamp of safety approval, but
UL says the bulb is NOT approved & is a potential safety hazard. If
you have a CFL that you believe is a safety hazard & if it is CSA
approved, send it to CSA Group,
178 Rexdale Blvd., Toronto Ontario, M9W 1R3 or Phone (416) 747-4277.
All CFLs should have either the CSA (Canadian Standards Association) or
UL or cUL ( Underwriter's Labs)
logo of safety approval & if they do not have a safety rating as noted
by the CSA or UL logo, then don't buy them. In Ontario & probably
other Canadian provinces, ANY electrical device that operates on 32 Volts
or more, must have either the CSA or UL logo, or be approved by the ESA (Electrical
Safety Authority) as
long as there is a standard for the product (which there is for CFLs),
presumably states in the U.S.A. have similar laws.
It is assumed that CFLs can be put almost anywhere that an incandescent
bulb can be put, but judging by the safety reports below, it is clear that
some CFLs overheat & burn out early or cause potential safety issues
when installed in a recessed or enclosed fixture. Read the manufacturers
packaging for instructions of where & where not to use CFLs.
LIFE EXPECTANCY OF BULB
Screw base, compact fluorescent lamps (CFLs) at a warm color
temperature of about 2700° Kelvin have an advertised life of 6000 -
10,000 hours (250 - 417 days on constantly, or 4.7 - 7.8 years at 3.5
hours per day) which is substantially more than incandescent bulbs which
are usually rated for 770 - 2000 hours (32-83 days on constantly, or 0.6 -
1.56 years at 3.5 hours per day). Having used CFLs for some time now,I
am quite skeptical of some manufacturers claims for number of hours.
Indeed, how would any typical consumer even know how long a bulb actually
lasted unless they left it on constantly & took note of when they
installed it & when it burned out. My own limited experience using at
least 45 screw base compact fluorescent bulbs (as of 2003) in intermittent
use (only occasionally turned on) in the last 18 months, is that 5 of them
have burned out way too early (that's at least a 11.1% early failure rate
using this small sampling & is likely to be higher). One person has
reported to me that 19 of 21 Luminus 20 Watt CFLs purchased at Costco have
burned out significantly prematurely. Another reported most 14
Watt Luminus CFLs burned out prematurely.
At least one manufacturer has tried to convince me that less than 1% of
CFLs fail prematurely, but I don't believe it, so keep your bill so you
can return any bulb that burns our prematurely. In particular I've
found that Sylvania brand CFLs routinely don't last very long. I've heard
one report of Pur-lite bulbs burning out in a month or two. I received a
report on poor customer service regarding Globe Electric Co. I have
observed that using a florescent bulb in a pull chain fixture might
shorten their life, possible because of the vibration. CFLs used in
totally enclosed fixtures or florescent floods will also result in
shortened life, probably because of heat build up in the sealed fixture.
Bulbs routinely turned on in sub freezing temperatures (below -23°C or
-10°F) may also shorten bulb life expectancy. Even if the
manufacturers claims of life expectancy for CFLs is only half of what they
claim, I still feel they are excellent value because of the huge cost in
electricity they save.
By Doug Hembruff.
First published May 3/2003, last updated November 9/2007.
Additional reading at http://members.shaw.ca/wiggie/Compact_Flourescent_Lights.html
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