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post light photocell Eric 04-01-2007
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Posted by Eric on April 1, 2007, 3:11 am


Hi,
I've got an outside light that has a small 1/4-1/2 inch dia. (whatever is
std) photocell sticking through a hole on the side of the post to control
the light (on at dusk off at dawn). Trouble is its instant on/off so in
certain light/weather conditions it flickers for 5-10 minutes or so. Where
can i buy a replacement that has a built in on-delay of at least 10 minutes
and preferably a half hour? (I dont care about off-delay one way or the
other, just the on-delay)
Thanks
Eric


PexSupply Save 10 468x60
Posted by Berkshire Bill on April 1, 2007, 7:06 am



> Hi,
> I've got an outside light that has a small 1/4-1/2 inch dia. (whatever is
> std) photocell sticking through a hole on the side of the post to control
> the light (on at dusk off at dawn). Trouble is its instant on/off so in
> certain light/weather conditions it flickers for 5-10 minutes or so. Where
> can i buy a replacement that has a built in on-delay of at least 10
> minutes
> and preferably a half hour? (I dont care about off-delay one way or the
> other, just the on-delay)
> Thanks
> Eric

It doesn't sound like you can point the photocell in a different direction.
How about making a shield ? A couple inches from the core of a toilet paper
roll or towel roll would be enough to experement with to see if stray light
is triggereing it.

Bill
>



Posted by Eric on April 1, 2007, 12:33 pm


Berkshire Bill wrote:

>
>> Hi,
>> I've got an outside light that has a small 1/4-1/2 inch dia. (whatever
>> is
>> std) photocell sticking through a hole on the side of the post to control
>> the light (on at dusk off at dawn). Trouble is its instant on/off so in
>> certain light/weather conditions it flickers for 5-10 minutes or so.
>> Where can i buy a replacement that has a built in on-delay of at least 10
>> minutes
>> and preferably a half hour? (I dont care about off-delay one way or the
>> other, just the on-delay)
>> Thanks
>> Eric
>
> It doesn't sound like you can point the photocell in a different
> direction.
> How about making a shield ? A couple inches from the core of a toilet
> paper roll or towel roll would be enough to experement with to see if
> stray light is triggereing it.
>
> Bill
>>
This was a replacement, and its just a very poor design, there doesnt seem
to be any hysteresis in it and so it just wavers from on to off (flicker)
until it finally gets dark enough. Its got a shield already.
Thanks
Eric


Posted by John Grabowski on April 1, 2007, 7:39 am



> Hi,
> I've got an outside light that has a small 1/4-1/2 inch dia. (whatever
is
> std) photocell sticking through a hole on the side of the post to control
> the light (on at dusk off at dawn). Trouble is its instant on/off so in
> certain light/weather conditions it flickers for 5-10 minutes or so. Where
> can i buy a replacement that has a built in on-delay of at least 10
minutes
> and preferably a half hour? (I dont care about off-delay one way or the
> other, just the on-delay)
> Thanks
> Eric
>

I don't know about a replacement for that small of a unit. You can usually
buy photocells that will fit into a 1/2" trade size (7/8" diameter) at a
local electrical supply company. You could drill the hole bigger with a
unibit. Have you tried to find a replacement at a lighting store? If you
pulled the unit out there might be a manufacturer's name on it.


Posted by RBM on April 1, 2007, 8:51 am


Here's one I use:
http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?ItemId=1611754700




> Hi,
> I've got an outside light that has a small 1/4-1/2 inch dia. (whatever is
> std) photocell sticking through a hole on the side of the post to control
> the light (on at dusk off at dawn). Trouble is its instant on/off so in
> certain light/weather conditions it flickers for 5-10 minutes or so. Where
> can i buy a replacement that has a built in on-delay of at least 10
> minutes
> and preferably a half hour? (I dont care about off-delay one way or the
> other, just the on-delay)
> Thanks
> Eric
>



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