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New CF bulb

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Bob Peterson

Jan 1, 1970
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I got a new yellow CF bulb for outside today and installed it to replace the
incandescent one there. It claims to produce the light of a 60W regular
bulb, but since none of the dozen or so other CF bulbs I have in service
produce what they promise, I did not expect this one to do so either.

I was pleasantly surprised after switching it on and finding that it did
indeed appear to be as bright as the 60W bug light it replaced.

Brand name is Commercial Electric, bought at home depot. Kind of pricey
(like $8) but if it lasts as long as it claims, it will be OK. Just to see
what happens with it I wrote today's date on it to see how long it lasts.
 
D

Dale Farmer

Jan 1, 1970
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Nothing40 said:
That was what got me with CF lights,they don't seem nearly as bright
as thier incandescent counterparts.The other problem is the color.The
one's we had in the bathroom (for half a day) were horrible! The color
of flesh was wierd,plus they made me feel dizzy.Replacing 2 of the 4
bulbs with 60W incandescents helped alot,and was still better than
running 4 60W incandescent bulbs. I'm inclined to say they were
Commercial Electric bulbs,but I'm not entirely sure.
One failed shortly after we moved them out of the bathroom,but it was
on alot,for long periods of time. The one on the back porch is still
working fine.

They do produce a different spectrum of light than an incandescent
bulb. You can get 'full spectrum' flouresents, but I've not seen them in
CF form factor yet, just stick bulbs. They are also different in how they
are perceived. Incandesants have a light source that is only 1-3 cm long,
and essentially a string. The glass bulb can be frosted to increase the
visible source area, and often is. Their color temperature is much higher,
since that smaller area has to put out more lumens.
Flouresents produce the light inside the entire length of the tube, and
more light is produced by the UV striking the phosphors coating the
inside of the bulb, which re-radiate in the visible light spectrum. So the
effective light producing area is a surface that is rather larger. ONe can
play with the phosphors to produce different spectrums at different
efficiencies. ( this is where a fair amount of R&D is directed at the lamp
companies. ) Of course as consumers, we pretty much have to take what
they give us in this area.

--Dale
 
B

Bob Peterson

Jan 1, 1970
0
Nothing40 said:
"Bob Peterson" <[email protected]> wrote in message lasts.

That was what got me with CF lights,they don't seem nearly as bright
as thier incandescent counterparts.The other problem is the color.The
one's we had in the bathroom (for half a day) were horrible! The color
of flesh was wierd,plus they made me feel dizzy.Replacing 2 of the 4
bulbs with 60W incandescents helped alot,and was still better than
running 4 60W incandescent bulbs. I'm inclined to say they were
Commercial Electric bulbs,but I'm not entirely sure.
One failed shortly after we moved them out of the bathroom,but it was
on alot,for long periods of time. The one on the back porch is still
working fine.

This one is shaped more like a regular bulb. All the other ones are small
tubes or spiral shapes. None of them are anywhere near as bright as what
they claim to be equivalent to in an incandescent bulb.

next bulb that goes gets replaced with a white one of these.

BTW - I have not had any more failures of the CF bulbs. The ones I have
used seem to have a fairly high infant mortality rate, but after the first
month or so of service have not had any additional failures.
 
A

alt

Jan 1, 1970
0
Bob said:
I got a new yellow CF bulb for outside today and installed it to replace
the
incandescent one there. It claims to produce the light of a 60W regular
bulb, but since none of the dozen or so other CF bulbs I have in service
produce what they promise, I did not expect this one to do so either.


I hate CF bulbs. The best way I can describe what I see is that they have
the colour of death.

Kudos on you for finding a bulb that works for you though.
 
M

m Ransley

Jan 1, 1970
0
Try T8 Slyvania 2X more light than CFL and better color picts for
you. \

T8 the way to go , up to 100 lpw. vs . 60 per watt , CFL
 
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