Connect with us

Compact fluorescent light failures

Discussion in 'Electronic Design' started by Peter E. Orban, Oct 7, 2004.

Scroll to continue with content
  1. James Sweet

    James Sweet Guest


    I have some 26W ones I got off Ebay, I think they're branded Titan in the
    bathroom, they've been fine so far but the fixture is not fully enclosed and
    I always turn on the vent fan when I shower.
     
  2. Roy McCammon

    Roy McCammon Guest

    I've had the same problem. I assumed that it was the humidity.
    We take steamy showers.
     
  3. I have put off replacing the light inside the shower with a CF bulb
    because of that worry. Maybe if I sawed one open and sprayed it with
    conformal coating? Only some brands seem to stand up well outdoors.


    Best regards,
    Spehro Pefhany
     
  4. Ross Herbert

    Ross Herbert Guest

    On Fri, 8 Oct 2004 09:27:31 -0700, "Joel Kolstad"

    ||> See Silicon Chip publisher's letter
    |> http://www.siliconchip.com.au/cms/A_102164/article.html
    |
    |Hmm... is this the same guy who runs Talking Electronics? I recall a very
    |similar editorial something like 4 or 5 years ago... Passages such as this:
    |
    |"In fact, we tried a succession of CFLs here in our office to replace
    |incandescents which were on all day, five days a week. We were lucky if the
    |CFLs lasted a few weeks."

    Colin Mitchell runs Talking Electronics
    http://www4.tpg.com.au/users/talking/ and he has no connection that I
    am aware of with Leo Simpson who is the editor of Silicon Chip.
    |
    |Something is clearly wrong here! If I had his those CFLs I'd feel perfectly
    |justified in demanding my money back from whoever sold them to be. My own
    |experience has been that CFLs typically do just 'last and last' -- I've had
    |some dozens of them over the past decade, and I believe I've had no more
    |than 3 or 4 that have died.
    |

    It is just a possibility that since all of the CFL's used in Australia
    are imported they may be in facrt be manufactured/specified for
    operation on 220/230Vac to conform with the European power supply. The
    Australian power supply is nominally 240Vac but it will vary up to 10%
    above this. Since the Australian market is tiny by comparison with
    Europe why would the nmanufacturers redesign the CFL's sold to
    Australia to have longer lifetime when operated at say 250Vac rather
    than the 230Vac in Europe? Despite the fact that the cartons in which
    the CFL's are packed are labelled for 240Vac operation, what's the
    betting that they are really 220/230Vac units?
     
  5. Most LOA compact fluorescents were being made in China last time I
    checked.

    In the 1990's I saw LOA ones with USA-made electronic ballasts, and I
    saw a cold solder joint in one and loose-fitting contacts (bad enough to
    cause problems) in one of only four non-China-made ones that I bought.

    I have also had enough LOA lamps not give me as much light as claimed.
    On one model I know of them reducing their claim of light output in
    lumens, although they continued to claim that the now-2700 lumen one was
    equal to a 200 watt incandescent.

    - Don Klipstein (, http://www.misty.com/~don/cfx.html)
     
  6. I'm starting to wish I did when three of the four LOA ones that I bought
    so far this decade died very young. If enough people pester those who
    give us junk with their junk and work to go through honoring their
    warranty, then they will shape up or go out of business.

    - Don Klipstein (, http://www.misty.com/~don/cfx.html)
     
  7. Oops - I look back on written records handy to me, turns out I only
    bought three LOA units so far this decade and had early failure of just
    two.

    Other early failures I had so far in CFLs that I bought so far this
    decade:

    1. Two GE 25 watt spirals that I bought in 2001 both failed after just a
    few hundred operating hours. I no longer see GE 25 watt spirals on the
    market.

    2. I have purchased at least three dozen dollar store compact
    fluorescents, totalling 10 "brands" and 22 "models". One was DOA and one
    failed after just a few minutes of operation. Two others were "not right"
    - one with an excessively hot base and one that flickered and had light
    output much lower than that of other dollar store CFLs.

    My main complaint of dollar store CFLs, however, is exaggerated claims
    of light output. None of my 22 "models" matched nor exceeded the light
    output of a 40 watt "soft white" incandescent, rated 445 lumens. Some of
    these claimed to replace incandescents of 125 watts. One claimed 1130
    lumens.
    Another complaint of dollar store CFLs is that most are bluish
    "daylight" in color, including some in packages saying "SUN Lighting" and
    some in packages that say "Soft warm white light". A majority of the few
    of my dollar store CFLs that actually had a "warm" color had a color more
    purplish than other "warm" CFLs and also had a low color rendering index.

    - Don Klipstein ()
     
  8. NSM

    NSM Guest

    ....
    | My main complaint of dollar store CFLs, however, is exaggerated claims
    | of light output. None of my 22 "models" matched nor exceeded the light
    | output of a 40 watt "soft white" incandescent, rated 445 lumens. Some of
    | these claimed to replace incandescents of 125 watts. One claimed 1130
    | lumens.
    | Another complaint of dollar store CFLs is that most are bluish
    | "daylight" in color, including some in packages saying "SUN Lighting" and
    | some in packages that say "Soft warm white light". A majority of the few
    | of my dollar store CFLs that actually had a "warm" color had a color more
    | purplish than other "warm" CFLs and also had a low color rendering index.
    |
    | - Don Klipstein ()

    Ain't that the truth? But considering the source (China) and the price I
    guess they're still a good deal. After all, Leno makes jokes about dollar
    store items regularly.

    N
     
  9. James Sweet

    James Sweet Guest


    Usually those "daylight" ones cost significantly more, I like them for
    outdoor lighting, they really make plants glow.
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-