How to Install a Lighted Bathroom Mirror | Step-By-Step Wiring Tips

Install a lighted bathroom mirror by mounting its bracket level, making the electrical connection with the power off, and testing the unit before sealing the edges.

For the full breakdown, see our best Bath Mirror With Light guide.

Installing a lighted bathroom mirror yourself can take an afternoon and save the $250 to $1000 professional installers charge. The job boils down to two skills: hanging something heavy and level, and making three wire connections safely. Both are doable for a careful DIYer. Before you buy, check whether the wall has an existing electrical box nearby and whether the mirror matches your bathroom’s moisture rating, and if you plan to plug one in, here’s the skill set involved. Here’s exactly how to do it the right way.

What You Need Before You Start

Gather your tools first: a voltage tester, stud finder, level, tape measure, drill with masonry or wood bits, screwdriver, wire strippers, and wire nuts. For the mirror itself, confirm it carries a UL or ETL listing — a mark that means an independent lab tested it for electrical safety. Fab Glass and Mirror’s guidance on lighted mirrors explains that these listings confirm safe construction for the bathroom.

Moisture ratings matter more than people think. A lighted mirror is an electrical appliance, not just a piece of glass. For general bathroom use, look for an IP44 rating or higher; for spots right near a shower, step up to IP65 or above.

How To Mount The Bracket And Hang The Mirror

Start by turning off power at the breaker and confirming the circuit is dead with a voltage tester before touching any wires. Then find the studs behind the drywall. If the mounting points land on studs, screw directly into them. If not, use anchors rated for the mirror’s weight — a solid 20 to 30 pounds needs a proper toggle or drywall anchor, not a flimsy plastic one.

Mark the mounting points with a level and tape measure, drill pilot holes, then install the anchors or screws. Most LED mirrors use a wall bracket or keyhole-style mounting system — the exact method depends on your model’s manual. Keonjinn, for instance, publishes separate installation instructions for its standard LED mirror and its 3-color version, because the wiring and bracket differ. Level the bracket carefully; once the mirror is on the wall, you cannot adjust it.

Wiring The Mirror Safely (Hardwired Models)

Hardwired mirrors connect directly to the circuit in the wall box. With power confirmed off, connect the mirror’s hot (black or brown) wire to the supply’s hot wire, the neutral (white or blue) to neutral, and the ground (green or bare) to the ground. Twist each pair together and cap with a wire nut, then tuck the splices neatly into the box so the mirror sits flush against the wall.

If this is your first time touching household wiring, call a licensed electrician — the $90 to $120 per hour labor cost beats a mistake.

Testing And Finishing The Installation

Restore power at the breaker and test the lights and any built-in controls. Check the anti-fog function if your mirror has one, and confirm the light color and dimmer work as expected. If everything runs, seal the edges with a clear silicone bead to keep moisture out from behind the unit.

If the lights flicker or stay dark, turn the power back off and check your wire connections — a loose neutral is the usual culprit. When the mirror works correctly, step back and admire the level line you achieved. If you are still shopping for the right model, see our tested roundup of the best bath mirror with light options to compare features before you commit to an installation.