On Fri, 30 Oct 2009 00:03:54 -0700 (PDT), Greegor
<(E-Mail Removed)> wrote:
>
>Among the new fluorescent ""light bulbs""
>I found a flourescent flood light.
>
>Totally worthless in Northern US states
>in the winter time.
>
>Not a mere convenience because severe
>weather is NOT a time to have such a failure.
>
>There's no mention of this problem on the product.
There are two problems with fluorescent lights in cold climate, one is
starting and the other is low light output. There are at least full
sized fluorescent tubes that are intended to start at temperatures
below -30 C.
Using a well insulated light fixture will allow the tube to start at a
low intensity and gain normal intensity after a few minutes when the
tube has reached nominal operating temperature due to the losses of
the tube itself (and electronics). Of course, using this light fixture
on a hot summer day will increase the internal temperature too high,
again reducing the light output and reduce the lifetime of the
electronics.
>How will the Californa mentality green weenies
>resolve this little problem for over 25% of the USA?
>
>BTW, one solution for flourescents that won't light
>in the cold is to LEAVE THEM ON! HORRORS!
At least here above 60 N where the winter day is short, there is not
much point in turning some out door light for the day. Of course some
low power (less than 5 W) should be used. Such a low power light
source will give sufficient light when switching on a high power
fluorescent light or HPS lamp and waiting for the full luminous output
for a few minutes.
Paul
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