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How to Install Recessed Lights

In new construction, recessed lighting is easy to install because the housing is mounted with nail-on flanges.Joy Fera / Shutterstock.com

In new construction, recessed lighting is easy to install because the housing is mounted with nail-on flanges.

Recessed lighting can be a subtle yet effective way to add ambient lighting to a room or to highlight specific portions of it. Relatively inexpensive and easy to install, recessed lighting is an option that should always be considered when choosing to add light to a living space.

install recessed lights

Many styles of recessed lighting are available at home improvement centers.

Recessed downlights are usually pre-wired and grounded to their housing boxes. Older-style downlights, however, may require wiring into a junction box attached to a ceiling joist. Keep in mind that downlights produce a lot of heat. To compensate for this, you must:

• Buy an IC-rated fixture for a direct-contact installation.

• Remove insulation within 3 inches of the fixture.

• Use special low-clearance downlights if the clearance above the fixture is tight.

• Keep combustible materials 1/2 inch or more from the fixture (with the exception of joists or other blocking used for support).

As always whenever performing electrical work, make sure the power supply is turned off to the area. Use a circuit tester (also called a neon tester) to confirm that the circuit is dead.

Hold back insulation from recessed lights in the ceiling beneath the attic floor. Photo: Johns ManvilleJohns Manville

Hold back insulation from recessed lights in the ceiling beneath the attic floor.

Installing a New-Work Downlight with a Box

Installing a standard new-work downlight fixture is a simple process in new construction. This kind of fixture easily fastens to ceiling joists with an adjustable hanger bar. Once the ceiling is in place, fixture trim is added as the finishing touch.

Note: Do not allow insulation to crowd the housing of the recessed light. To prevent heat build-up—and possible fire—insulation must be held back as shown in the photograph.

Please check out this video, put out by Halo, the leading manufacturer of recessed lights:

 

Wiring an Old-Work Downlight

If you don’t have access from above the ceiling, you will have to use an old-work fixture installed from below. Before beginning installation, you will need to locate a space between two ceiling joists. Once you have, here is how to install the downlight:

1Make the connections. First, cut an access hole in the ceiling (use the paper template included with the fixture), and remove the cover plate on the mounting box. Next, splice the fixture wires to the incoming circuit wires—black to black, white to white, green or bare fixture wire to the grounding wire for the circuit. Replace the cover plate on the mounting box.

2Slip the fixture into position. Gently maneuver the fixture, junction box first, into the access hole in the ceiling. Different fixtures employ different attachment methods; consult the directions included with the particular fixture you have chosen.

3Add the trim. Screw a lightbulb into the fixture socket and add the light fixture’s trim; this trim not only hides the rough edges around the hole in the ceiling but also helps diffuse the light coming out of the fixture.

Featured Resource: Get a Pre-Screened Local Lighting Installation Pro

About Don Vandervort
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Don Vandervort developed his expertise more than 30 years ago as Building Editor for both Sunset Books and Home Magazine. He has written more than 30 home improvement books and countless magazine articles. He appeared regularly on HGTV’s “The Fix,” and served as MSN’s home expert. Don founded HomeTips in 1996.

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