This article was posted 02/10/2011 and is most likely outdated.

Compact Fluorescent Bulb a Fire Risk?
 

 

Topic - Safety
Subject -Compact Fluorescent Bulbs a Fire Risk?

February 10, 2011
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Compact Fluorescent Lamp a Fire Risk?

ImageAn article that surfaced in April 2010 on the Internet warned about a fire hazard associated with compact fluorescent lamps (CFL bulbs) and has been traveling the email circuit:

“Below is a picture of a CFL light bulb from my bathroom.  I turned it on the other day and then smelled smoke after a few minutes.  Four inch flames were spewing out of the side of the ballast like a blow torch!  I immediately turned off the lights.  But I'm sure it would have caused a fire if I was not right there.  Imagine if the kids had left the lights on as usual when they were not in the room. “

This has been checked out by Snopes, and stamped FALSE.

According to the Snopes article, CFLs don’t burn out the way incandescent light bulbs do. Instead, as they near the ends of their lives, they grow dimmer. While some CFL bulbs merely stop emitting light when they finally quit working, others kick the bucket with a dramatic “pop” sound and then vent a distinct odor. A few even release a bit of smoke at their termination.

Healthy CFL bulbs may emit a bit of smoke and smell and have burnt-looking bases when they die, that that’s as it should be – there’s no fire danger to any of that, and indeed the bulbs are functioning properly when they act that way.

Get the full story from the source: http://www.snopes.com/inboxer/household/cflbulb.asp

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Comments
  • Interestingly UL lists these bulbs and recognized this type of failure mode as acceptable. So THEY say it is not a fire hazard. There is no verified evidence that a CFL ever caused fire due to their failure mode.

    CFL's and other fluorescent lights along with HPS, MH and Mercury bulb contain mercury which is a liquid metal and needs to be disposed properly. (Most of your BigBox stores will accept them for recycling.)

    Be mindful when installing CFL's and don't install them outdoors or in an enclosed fixture unless the carton specifically says so.

    LZW  February 11 2011, 10:36 am EST
  • Reply from: Mike Beanland   February 11 2011, 10:51 am EST
    The Snopes article refers to National Geographic's Green Guide and a Voltage Dependent Resistor. A VDR is a varistor or surge suppressor. The function claimed for the VDR in the Snopes article does not exist. A search of the National Geographic website did not uncover any reference to a "Voltage Dependent Resistor." This makes the whole Snopes article suspect.


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