How to Install Under-Cabinet Lighting in 6 Steps

TL;DR: Under-cabinet lighting installs in two ways: plug-in fixtures ($15–$150) that connect to existing outlets, or hardwired strips ($100–$300) tied into your kitchen's electrical system. Plug-in takes 1–2 hours; hardwired takes 3–4 hours and may require a new switch. LED strip lights offer the most even coverage at 300–500 lumens per foot. Always turn off the breaker before touching any wiring.

_Last reviewed: July 2026 · 6 min read_

Kitchen counters in shadow make chopping and prep work harder. Under-cabinet lighting fixes that — and raises resale appeal — for $50–$500 depending on whether you run new wire or plug into an outlet. Here's how to choose your approach and install it correctly.

Okoniq Property Hub logs every lighting upgrade with photos and receipts, so you have dated proof of improvements when you sell or refinance.

Should you choose plug-in or hardwired under-cabinet lights?

Plug-in fixtures connect to an existing outlet with a visible cord. They cost $15–$150 per fixture, install in 1–2 hours, and require no electrical permit in most jurisdictions. You'll see a thin white or clear cord running along the underside of the cabinet to the nearest outlet — fine for a quick upgrade or a rental where you can't modify wiring.

Hardwired lights tie into the kitchen's electrical system through a junction box or switch. They cost $100–$300 per fixture plus electrician labor if you hire out, but the result is cleaner: no visible cords, and the lights turn on with a wall switch. Hardwired installs take 3–4 hours for a DIYer comfortable with basic electrical work, or 2–3 hours for a licensed electrician. Check local code — some municipalities require a permit for any new circuit work, while others allow homeowner-installed lighting under an existing circuit without inspection.

If your kitchen already has a switch loop near the cabinets (common in 1990s-and-newer construction), hardwired is worth the effort. If the nearest outlet is across the room, plug-in saves time and money. For long-term property maintenance tracking, document which method you chose and where the power source connects — future owners or tenants will thank you.

What type of under-cabinet light fixture works best?

LED strip lights deliver the most uniform illumination. They mount as a continuous ribbon along the front edge of the cabinet base, emitting 300–500 lumens per foot. A 3-foot strip typically draws 12–18 watts and produces 2700K–3000K warm white light. Strips cost $30–$80 per 3-foot section and last 25,000–50,000 hours. Install them 2–3 inches from the cabinet's front edge to minimize shadows on the countertop.

Puck lights are individual round fixtures spaced 8–12 inches apart. Each puck outputs 200–300 lumens and costs $8–$25. They're easier to retrofit into cabinets with plumbing or electrical obstacles, but create scalloped light patterns instead of a smooth wash. Use at least three pucks per 3-foot cabinet run to avoid dark spots between fixtures.

Linear bar lights resemble thin fluorescent tubes but house LEDs. They mount flush under the cabinet, emit 800–1200 lumens per 2-foot bar, and cost $40–$120 each. Bars work well in kitchens with glass-front cabinets where you want downlight only on the counter, not up into the cabinet interior. All three types come in plug-in and hardwired versions — choose based on your power-source decision from the previous section.

Color temperature matters: 2700K feels warmer (incandescent-like), 3000K is neutral white, and 4000K skews blue-white (commercial kitchen). Stick to 2700K–3000K for residential kitchens unless you're matching existing daylight-balanced LEDs elsewhere. When you upgrade cabinet hardware, coordinate the fixture finish (brushed nickel, bronze, white) with new pulls and knobs for a cohesive look.

How do you install plug-in under-cabinet lights?

Turn off power to the outlet you'll use at the breaker panel, then verify it's dead with a non-contact voltage tester. Wipe the underside of the cabinet with isopropyl alcohol to remove grease — adhesive won't stick to oily surfaces.

For LED strip lights, peel the backing off the first 6 inches of adhesive tape and press the strip to the cabinet base 2–3 inches from the front edge. Work in 12-inch sections, keeping the strip straight and parallel to the cabinet's front lip. If the strip sags, add a dab of clear silicone adhesive every 18 inches for extra hold. Run the power cord along the back wall of the cabinet or down the inside corner to the outlet — use adhesive-backed cable clips every 8–10 inches to keep it tidy.

For puck lights, mark drill points 8–12 inches apart along the cabinet centerline. Drill pilot holes if the manufacturer's screws require them, then screw each puck base into place. Snap the light module into the base. Daisy-chain the pucks using the included jumper cables (usually 6–12 inches long), then plug the lead cable into the outlet. If your cabinet run exceeds the cable length, buy a 6-foot extension cord rated for indoor use and tuck it along the baseboard.

Turn the breaker back on. If the lights don't turn on, check that the puck modules are fully seated in their bases and that the outlet is live. Most plug-in fixtures ship with an inline switch on the power cord; mount that switch under the cabinet edge with a command strip so you don't have to reach behind for the outlet each time. Document the install date and fixture model in Okoniq so you know when to replace them after 10–15 years.

How do you install hardwired under-cabinet lights?

Hardwired installs require cutting power at the breaker, fishing wire through walls, and making wire-nut connections inside a junction box. If you're not comfortable with 120V wiring, hire a licensed electrician — a typical under-cabinet job costs $200–$400 for labor. If you proceed, turn off the breaker to the kitchen lighting circuit and verify it's dead with a voltage tester at the switch box.

Locate or install a junction box in the wall behind the cabinets or above them if the drywall is accessible. If you're tapping into an existing switch, remove the switch cover and pull the hot wire (usually black) forward. Run 14/2 or 12/2 NM-B cable (match your existing circuit gauge) from the switch box to the first under-cabinet fixture location. Drill a ¾-inch hole through the cabinet back or side panel where the wire will enter. Secure the cable with staples every 18 inches per NEC 334.30.

Strip ½ inch of insulation from the wire ends. Connect the black (hot) wire from the switch to the fixture's black lead, white (neutral) to white, and bare copper (ground) to the fixture's green or bare ground wire using twist-on wire connectors. Tuck the connections into the junction box, mount the fixture base to the cabinet with the provided screws, and snap the light cover into place. If you're daisy-chaining multiple fixtures, run cable from the first fixture to the second, splicing hot-to-hot, neutral-to-neutral, and ground-to-ground at each junction.

Turn the breaker back on and test the switch. If the lights flicker or don't turn on, double-check that wire nuts are tight and that you didn't reverse hot and neutral. Once confirmed, reinstall the switch cover plate. A hardwired setup should match the rest of your kitchen's electrical work — if you recently replaced a ceiling light fixture, the same wiring principles apply.

What maintenance does under-cabinet lighting require?

Wipe LED strips and puck lenses every 3–6 months with a damp microfiber cloth to remove cooking grease haze — buildup cuts light output by 20–30%. Avoid ammonia-based cleaners on acrylic diffusers; they cause yellowing. Check that adhesive strips haven't sagged; if one section droops, remove it, clean the surface again, and reapply with a fresh adhesive strip or a bead of clear silicone.

Inspect plug-in cords annually for fraying near the plug or inline switch. If the insulation is cracked, replace the fixture — don't tape over it. For hardwired systems, listen for buzzing at the switch or fixtures; a hum usually means a loose wire nut or a failing LED driver. Turn off the breaker and re-tighten connections inside the junction box.

LED under-cabinet lights last 25,000–50,000 hours — roughly 10–20 years at 3 hours per day. When they fail, the entire strip or puck typically goes dark rather than flickering. Replace the whole fixture; individual LEDs aren't user-replaceable. Save the model number and install date in your property records so you can order an exact match if the style is still available. If you've logged other electrical work like ceiling fan installs, keep under-cabinet notes in the same maintenance folder.

FAQ

Do under-cabinet lights need their own circuit?

No, they can share a kitchen lighting or outlet circuit if total load stays under 80% of the breaker rating — typically 12 amps on a 15-amp circuit. A single 3-foot LED strip draws 0.1–0.15 amps; even six strips plus existing lights rarely exceed safe capacity. If you're adding many fixtures or high-wattage halogen lights, consult an electrician about a dedicated 15-amp circuit.

Can you install under-cabinet lights without drilling into cabinets?

Yes, use plug-in LED strips with strong 3M adhesive backing and route the cord through the back gap between the cabinet and wall. Most upper cabinets have a ½- to 1-inch space behind them for this. Alternatively, mount slim battery-powered puck lights (no plug needed), but expect to replace AAA or AA batteries every 6–12 months with regular use.

How bright should under-cabinet lighting be?

Aim for 300–500 lumens per linear foot of counter space for task lighting — enough to see knife work without glare. A 3-foot cabinet section needs roughly 900–1500 total lumens. If your kitchen has overhead recessed lights providing ambient illumination, lean toward the lower end; if under-cabinet is your primary work light, go higher or add a dimmer switch.

Can you install under-cabinet lights in a rental property?

Yes, plug-in fixtures are tenant-friendly because they don't modify the electrical system or structure. Hardwired installs require landlord approval and typically become the landlord's property once installed. Check your lease — some prohibit any wall penetrations, even small screw holes. If you install plug-in lights as a tenant, remove them before moving out and fill any adhesive-strip marks with touch-up paint.

How do you hide under-cabinet light cords?

Run cords along the back wall of the upper cabinet or down the inside corner to the outlet. Use adhesive-backed cable channels (sold in 6-foot lengths at hardware stores for $5–$10) painted to match your wall color. If the outlet is behind a lower cabinet, drill a ¾-inch hole in the back of the upper cabinet and fish the cord down the wall cavity to the outlet — no code violation if you're not running permanent wiring.

This is educational information, not electrical or construction advice. Local electrical codes vary by jurisdiction; check with your city or county building department before installing hardwired lighting. Hire a licensed electrician if you're unsure about any step involving live wiring.