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Light fixture bigjcw1023 09-16-2007
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Posted by on September 17, 2007, 1:13 am
> On Sun, 16 Sep 2007 19:51:07 -0700, bigjcw1023 wrote:
> > I have an outdoor light fixture mounted to the side of the house next
> > to the front door under our porch. I have a compact fluorescent bulb
> > in the fixture and when it is on, there is a pulse to the light. I
> > have tried different CF bulbs and the same thing, whether higer or
> > lower in wattage. I currently have a 16watt bulb in there now. Does
> > this mean the fixture needs replacing, or what. There are two other
> > fixtures, both on three way switches and are fine with the CF bulbs.
> > Both are 26watts.
>
> If you have a photo cell that turns the light on they will pulse when
> turning on at dusk and off in the morning but this will burn out the
> electronics in the bulb base and it will fail in a couple of months.
> That's when I read the instructions on the second bulb. ;-(

Not a photosensor. Just a plain old fixture.


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Posted by Jeff Wisnia on September 17, 2007, 12:31 pm
bigjcw1023@gmail.com wrote:

>
>>On Sun, 16 Sep 2007 19:51:07 -0700, bigjcw1023 wrote:
>>
>>>I have an outdoor light fixture mounted to the side of the house next
>>>to the front door under our porch. I have a compact fluorescent bulb
>>>in the fixture and when it is on, there is a pulse to the light. I
>>>have tried different CF bulbs and the same thing, whether higer or
>>>lower in wattage. I currently have a 16watt bulb in there now. Does
>>>this mean the fixture needs replacing, or what. There are two other
>>>fixtures, both on three way switches and are fine with the CF bulbs.
>>>Both are 26watts.
>>
>>If you have a photo cell that turns the light on they will pulse when
>>turning on at dusk and off in the morning but this will burn out the
>>electronics in the bulb base and it will fail in a couple of months.
>>That's when I read the instructions on the second bulb. ;-(
>
>
> Not a photosensor. Just a plain old fixture.
>

Can you describe the "pulse" please? How frequently does it occur, how
long do the "dim" periods last, etc.

Have you tried a regular incandescent bulb in that fixture recently? If
so, does it light OK?

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.


Posted by TKM on September 17, 2007, 2:32 pm

>I have an outdoor light fixture mounted to the side of the house next
> to the front door under our porch. I have a compact fluorescent bulb
> in the fixture and when it is on, there is a pulse to the light. I
> have tried different CF bulbs and the same thing, whether higer or
> lower in wattage. I currently have a 16watt bulb in there now. Does
> this mean the fixture needs replacing, or what. There are two other
> fixtures, both on three way switches and are fine with the CF bulbs.
> Both are 26watts.

As others have indicated, any kind of dimmer, photocell or other than a
standard switch in the circuit could cause the flickering problem. CFLs may
also flicker when cold. However, that flicker will quickly disappear as the
lamp warms up especially if the lamp is in an enclosed fixture.

TKM



Posted by on September 17, 2007, 3:52 pm
>
>
> >I have an outdoor light fixture mounted to the side of the house next
> > to the front door under our porch. I have a compact fluorescent bulb
> > in the fixture and when it is on, there is a pulse to the light. I
> > have tried different CF bulbs and the same thing, whether higer or
> > lower in wattage. I currently have a 16watt bulb in there now. Does
> > this mean the fixture needs replacing, or what. There are two other
> > fixtures, both on three way switches and are fine with the CF bulbs.
> > Both are 26watts.
>
> As others have indicated, any kind of dimmer, photocell or other than a
> standard switch in the circuit could cause the flickering problem. CFLs may
> also flicker when cold. However, that flicker will quickly disappear as the
> lamp warms up especially if the lamp is in an enclosed fixture.
>
> TKM

It is in a bottom open fixture and the incandescent lights up fine.


Posted by on September 17, 2007, 11:34 pm
On Sep 17, 3:52 pm, bigjcw1...@gmail.com wrote:
>
>
>
>
>
> > >I have an outdoor light fixture mounted to the side of the house next
> > > to the front door under our porch. I have a compact fluorescent bulb
> > > in the fixture and when it is on, there is a pulse to the light. I
> > > have tried different CF bulbs and the same thing, whether higer or
> > > lower in wattage. I currently have a 16watt bulb in there now. Does
> > > this mean the fixture needs replacing, or what. There are two other
> > > fixtures, both on three way switches and are fine with the CF bulbs.
> > > Both are 26watts.
>
> > As others have indicated, any kind of dimmer, photocell or other than a
> > standard switch in the circuit could cause the flickering problem. CFLs may
> > also flicker when cold. However, that flicker will quickly disappear as the
> > lamp warms up especially if the lamp is in an enclosed fixture.
>
> > TKM
>
> It is in a bottom open fixture and the incandescent lights up fine.

Correction! The incandescent does not light either. Time for a new
fixture!


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