I think you'll find fluorescent bulbs are not a good replacement in
ceiling fans and other places where the lights are on for short periods
of time. From the Department of Energy's assessment of CF lights:
"Repeatedly switching a compact fluorescent light on and off reduces
the life of the bulb. Therefore, compact fluorescent lights provide the
biggest savings when they are used to replace incandescent lights that
are used several hours per day."
Use CFs where you need to have a light on for long stretches, such as
your living room, porch lights, etc., but not where there are short
on-off cycles such as bathrooms, bedrooms, etc.
We put CF bulbs in the kitchen, bathroom and vestibule, and they burned
out much faster than standard incandescent bulbs every single time. In
the long run, that costs more and wastes more as you contribute faster
to the landfill and manufacturing energy use.
I have 2 of those fans (those with the small light globes). One is
used occasionally, for short periods of time. It has an incandescent
(smaller, called "ceiling fan bulb"). The other one is used for
several hours a day, and has the CF I posted about earlier.
Some ideas that I might think about:
1. Replace the light kit of the fan with a bigger one.
2. Replace the globe for a bigger one.
3. Operate without a globe.
4. Get the 'full spectrem' CF bulbs, they look brighter for the same
Just some guesses,
tom @ www.Japanese-Beetles.com
1. Is there an issue (heat or otherwise) mounting a CF upside down?
2. Are they suitable in a high vibration application, such as this?
I put a CF in mine, just checking before I shut it all up again
It's over the stairs and a PITA to get to).
On Sat, 13 Jan 2007 03:37:20 GMT, Paul M. Eldridge
Some CF bulbs have warnings against 'fully enclosed indoor use'. Not
really sure what this REALLY means, since I used some inside globes
and they have small vent holes in the base. I wonder if this means
Follow the directions, I think even some CF bulbs are marketed for
ceiling fans too.
tom @ www.BlankHelp.com
Practically speaking, I don't imagine there would be a problem using
just about any 13 to 15-watt CFL (60-watt equivalent) in this type of
The Philips Marathon Universal (available at Home Depot) has an
operating range of -30C through to +60C (-22F to +140F). Although
we're told "use in recessed cans or totally enclosed indoor fixtures
could result in reduced lamp life", the accompanying comparison chart
shows this lamp is compatible with "surface mount" fixtures; the
representative picture, in this case, is of a marine-style fixture
with a fully enclosed, air-tight lens. You'll have to draw your own
Please note the data sheet should read 60C, NOT 60F.
Heat build up shouldn't be a problem if there are ventilation holes
and the CFL is in the range of 13 to 15-watts. If you're curious and
have one of those electronic indoor/outdoor thermometers, you could
stick the outdoor probe inside the globe and monitor its temperature
over a two to three hour period. If it remains below 40C (104F), you
should be fine. If it runs a little higher than this, the Philips
Marathon Universal is rated for temperatures up to 60C (140F).
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