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Old 07-28-2012, 04:41 PM   #1
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What type of junction box for attaching motion light to existing attic light?


Hello,

I am installing an outdoor flood motion light in the backyard which will be attached to the soffit. I was planning to run the wiring off of the existing attic light (see image http://postimage.org/image/pne3i2wdb/). This attic light is controlled by a switch in the hallway.

Two questions:

1. Since the current attic light is wired to a switch, should I also have the motion controlled by the same switch or make the motion light always on?

2. What kind of junction box should be used to connect this to the existing wiring. The existing wiring looks like 14-2 NM, should I use the same size for the new light or 12-2?

Thanks in advance!


Last edited by kanigit; 07-28-2012 at 04:46 PM. Reason: Added image
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Old 07-29-2012, 12:00 AM   #2
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What type of junction box for attaching motion light to existing attic light?


if you want the flood light switched with the attic light, this could be relatively easy.
However, your left with two options here. either leave attic light on while flood is on(waste electricity)
or operate attic light solely with pull chain. (no attic light when switch is on)

neither of these are ideal, but it's your house
to do this, run 14/2 from the attic light box to the new light box mounted in soffit.

preferably you would want separate control over both lights.
for this to happen you'll need to feed another 14/2 from the switch box to the flood light.

if you dont want to expand a single switch box for a double, you can get a double switch that operates two devices.
like this one

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Old 07-29-2012, 07:58 AM   #3
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What type of junction box for attaching motion light to existing attic light?


Quote:
Originally Posted by kanigit View Post
Hello,

I am installing an outdoor flood motion light in the backyard which will be attached to the soffit. I was planning to run the wiring off of the existing attic light (see image http://postimage.org/image/pne3i2wdb/). This attic light is controlled by a switch in the hallway.

Two questions:

1. Since the current attic light is wired to a switch, should I also have the motion controlled by the same switch or make the motion light always on?

2. What kind of junction box should be used to connect this to the existing wiring. The existing wiring looks like 14-2 NM, should I use the same size for the new light or 12-2?

Thanks in advance!
You need to determine whether the incoming power feed is at the switch or in the attic jbox.
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Old 07-29-2012, 10:00 AM   #4
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What type of junction box for attaching motion light to existing attic light?


Quote:
Originally Posted by kanigit View Post

1. Since the current attic light is wired to a switch, should I also have the motion controlled by the same switch or make the motion light always on?
Up to you.

Quote:
Originally Posted by kanigit View Post
2. What kind of junction box should be used to connect this to the existing wiring. The existing wiring looks like 14-2 NM, should I use the same size for the new light or 12-2?

heres a decent article on installing soffit lighting:
http://www.hammerzone.com/archives/e...nder_eaves.htm
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Old 11-19-2012, 02:21 AM   #5
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What type of junction box for attaching motion light to existing attic light?


Not trying to hijack this thread, but just a quick related question...is there such as thing as soffit (outdoor) decorative lighting (with motion sensor, and NOT wall-mounted)?? Is such a thing exist? Just curious, thanks!

Last edited by ohman; 11-19-2012 at 02:41 AM.
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Old 11-19-2012, 01:07 PM   #6
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What type of junction box for attaching motion light to existing attic light?


Heath Zenith makes a few. You can find them at either Home Depot or Lowe's. Also Amazon.com.
http://www.amazon.com/Heath-Zenith-S...ref=pd_cp_hi_2
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Old 11-19-2012, 01:13 PM   #7
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What type of junction box for attaching motion light to existing attic light?


You can also install a separate motion sensor for any type of light.

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