Thread the connector clockwise onto the twisted wires, being sure no bare copper is exposed at the bottom. Pull gently on the connector to be sure it’s secure. You can wrap electrical tape around the wires and cap for extra security or just push the splices into the back of the box and attach the cover plate.
Working in the unfinished attic space above the new fixture location, measure the distance between the two nearest ceiling joists. Cut a 2x4 to this length and attach a new, fan-rated outlet box to the midpoint using deck screws.
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Adapters, like the one pictured, are available from hardware/home stores to make this type of installation. One of these may be required for light fixtures missing the necessary parts to fit the electrical box. For high ceilings, the threaded rod length can be adjusted to suit most situations.
To install a fixture using a coupler, thread the rod into the center hole in the mounting strap and set the rod depth so the fixture base will fit snuggly against the ceiling when it’s installed. Measure the depth of the cover plate to estimate placement, precision isn’t necessary here, small adjustments can be made to the position after the installation by turning the coupler nut. Be sure all the wires are stripped for splicing, hold the fixture up and feed them through the threaded rod into the outlet box.
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