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Science Forum Index » Energy Forum » How do CF lites stand up to the cold?
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| H. E. Taylor |
 Posted: Sat Nov 01, 2003 12:28 am |
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| John Gilmer |
| Posted: Sat Nov 01, 2003 12:28 am |
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"H. E. Taylor" <het@despam.autobahn.mb.ca> wrote in message
news:3FA34491.4C1F@despam.autobahn.mb.ca...
Quote: Hi,
I am thinking of putting a CF lite in an unheated porch.
Does anyone here happen to know how well a CF lite will
tolerate the cold [-40C at most]?
Ha, ha.
Actually, I had pretty good luck with an outside fixture with built in
photocell. It had a plastic cover the provided some protection from the
cold. I guess the combination of the heat from the sun sensor and the
"insulation" of the plastic enclosure kept it working.
I no longer live in the house but it did work to about 0 F. |
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| Ron Rosenfeld |
| Posted: Sat Nov 01, 2003 6:14 am |
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On Fri, 31 Oct 2003 21:28:49 -0800, "H. E. Taylor"
<het@despam.autobahn.mb.ca> wrote:
Quote: Hi,
I am thinking of putting a CF lite in an unheated porch.
Does anyone here happen to know how well a CF lite will
tolerate the cold [-40C at most]?
curious
-het
We have some Phillips bulbs which were labeled for outdoor use. They have
been working for about 2 1/2 years now without a problem. Temperatures
here have been down to about -10°F
-- ron (off the grid in Downeast Maine) |
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| j.b. miller |
| Posted: Sat Nov 01, 2003 7:10 am |
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I've had 6 or 7 of the 'Globe' brand from Walmart in use for the past year
or so in an unheated steel building as well as a porch light.
While they take a bit to get going (2-3 minutes until full white,they've
outlived regular bulbs and actually turnon as opposed to 4' FL tubes.
I'm sold on them and will replace all the 4footers with CF. They are
brighter and cheaper to power.
I'm in central Ontario where -20 is not uncommon for 3-4 months( ugh,
starting soon too.......)
Jay |
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| CM |
| Posted: Sat Nov 01, 2003 4:14 pm |
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Quote: I am thinking of putting a CF lite in an unheated porch.
Does anyone here happen to know how well a CF lite will
tolerate the cold [-40C at most]?
1) Check the package when shopping, it usually gives the operating
temperature range for that brand. I've found several that work
to -30F.
2) There are outdoor fluorescent light fixtures, these usually run
fine down to -30 or -40, plus they are designed to be weatherproof,
and usually have a photocell to turn off during the day. Some models
are inexpensive, I got one with a photocell for $15.
3) For the worst case extrene cold scenario, you might consider
building a lighing enclosure for both fluorescent and incandescent,
with a double throw thermostat set to about -20F. That way the
incandescent works when it is too cold for the fluorescent. When it
warms up sufficiently, the fluorescent takes over.
CM |
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| bob peterson |
| Posted: Mon Nov 03, 2003 11:53 am |
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"H. E. Taylor" <het@despam.autobahn.mb.ca> wrote in message news:<3FA34491.4C1F@despam.autobahn.mb.ca>...
Quote: Hi,
I am thinking of putting a CF lite in an unheated porch.
Does anyone here happen to know how well a CF lite will
tolerate the cold [-40C at most]?
curious
-het
It doesn't get much colder than zero here. I have a couple bug light
CFs in my porch lights that seem to work reasonably well. Don't put
out anywhere near as much light as a comparable incandescent, and they
are noticably less bright when cold, but they still work. One has
been out there for about 3 years now. |
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