How To Hang A Light Fixture Without A Junction Box. Remove the nut or screws securing the dome shaped canopy and lower it. Cut a hole into the ceiling with a drywall saw.
Then remove the screws securing the crossbar to the electrical box and lower the fixture. Hold a ceiling electrical box against the ceiling where you will install the fixture and trace the outline of the box. In outdoor locations install a weatherproof surface mount box.
We installed the hook in the ceiling at the location where we wanted the fixture.
If you have an old light fixture that is not attached to the wall or ceiling with a junction box you should repair the light fixture by removing it installing a junction box and installing a new fixture. Repair a light fixture. Secure the feature to the wall or ceiling by. In outdoor locations install a weatherproof surface mount box.