A junction box is a container used to enclose electrical connections (junctions).

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Mount Ceiling Fan to Old Junction Box?

Is there anyway to safely mount a ceiling fan to this type of older ceiling junction box (see the photos)? I rent an old 1920's built house where an old hanging light fixture junction box was covered ...
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How do I seal an electrical box for a ceiling fan?

We recently installed new electrical boxes and hung fans from them. We caulked around the boxes to seal off airflow into the attic. There are several small holes (and one has a medium sized hole) on ...
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What can I use to fix a gap between the light fixture and the ceiling?

It's a very old house that the ceiling is made out of lath and plaster so it would be too much work to dig a hole to put in a large junction box for the wires. They won't fit in the base of the light ...
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What is the purpose of these removable “collars” on ceramic light fixtures

This fixture happens to be plastic, but all my ceiling juntion box mounted 600w rated light fixtures have a removable collar. I don't see the point in this extra part. Is there some sort of shade I ...
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Replacing Old Ceiling Fan With New One and No Visible Ground Wire From Junction Box

I am replacing the ceiling fan in my bedroom. Coming out of the junction box are two sets of wires. Each set has one wire coming out of opposite ends of the junction box. I connected the blue and ...
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What type of junction box cover do I need?

We are building a set of shelves to cover up a sewer pipe in my basement. The shelves will have a false back that covers the pipe then have usable shelves in front of it. The only problem is that ...