Recessed light fixtures are great for providing ambient overhead lighting in bathrooms. Wiring a bathroom fixture (or fixtures) is the same as in any other interior room. In a typical installation, the fixture is connected to a standard single-pole wall switch, with the fixture at the end of the cable run. The switch is connected to a standard (15-amp, 120-volt) household lighting receptacle circuit to provide power to the fixture. You can wire multiple fixtures to the same switch by branching off from each successive fixture with circuit cable.
Instructions
1. Turn off the power to the circuit cable that feeds the electrical box for the wall switch at the home's service panel (breaker box).
2. Cut the ceiling hole for the fixture and mount the fixture frame (with junction box), as directed by the manufacturer. Note: Remodel-type fixtures do not include a mounting frame; you install the entire fixture as a unit after making the wiring connections to the fixture body.
3. Install 14-gauge, 2-wire, non-metallic cable (14/2 NM) between the fixture junction box and the electrical box for the . Anchor the cable with cable staples within 12 inches of the boxes and every 4 1/2 feet along the run (or as required by the local building code). If you're installing multiple fixtures, also run cable from the first fixture in the series to the next, and so on.
4. Connect the switch to the circuit cable from the power source and to the new fixture cable, following the switch manufacturer's wiring diagram. Install the switch in the electrical box, then install the switch cover plate.
5. Connect the wires from the fixture cable to the wire leads on the fixture canister, as directed by the manufacturer. Many fixtures have wire leads that run through metal sheathing, which is secured to the fixture's junction box before the wiring connections are made. With remodel-type fixtures, the cable wires may be connected directly to the fixture body. Compete the connections for any remaining fixtures, as applicable.
6. Install the fixture into its mounting frame (or insert a remodel fixture into the ceiling, as directed). Turn on the power to the power-source circuit. Test the fixture at the wall switch.
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