How to install LED strip lights under kitchen cabinets

⚡ Installing LED Strip Lights Under Kitchen Cabinets: Safe Planning, Mounting and Power Connection Guide

What are the key considerations for installing LED strip lights under kitchen cabinets in Australia?

LED strip lights under kitchen cabinets are a popular way to add affordable task lighting and warm ambient light to a kitchen upgrade. For Australian homes, the key considerations are selecting the right 12V or 24V LED system, mounting it neatly in an aluminium profile, and ensuring any 230/240V AC mains wiring and fixed electrical connection complies with AS/NZS 3000.

Electrical work in Australia must be performed by a licensed electrician. This guide is for understanding the process and selecting the right tools and materials. It is suitable for planning, low-voltage assembly and discussing the job clearly with your electrician if a plug-in or hard-wired driver is required.

What skill level is required for installing LED strip lights under kitchen cabinets?

Beginner to Intermediate — Estimated time: 2–4 hours

What tools are required for installing LED strip lights under kitchen cabinets?

What materials are needed for an LED strip light installation under kitchen cabinets?

Safety Requirements

Step-by-Step Guide

Step 1: Plan the layout and choose the LED system

1️⃣ Measure each cabinet run

Measure the underside of each wall cabinet in mm and note where the light should start and stop. In most kitchens, the cleanest result is to mount the strip close to the front rail of the cabinet so the benchtop is lit evenly without seeing the LEDs directly.

2️⃣ Choose the strip type

For under-cabinet lighting, a 24V DC LED strip is often the better option because it handles longer runs with less voltage drop than 12V DC. Choose:

A higher CRI, ideally 90+, gives better colour rendering on food and benchtops.

3️⃣ Calculate wattage

Add the wattage per metre of the strip and multiply by total length. Then add at least 20% headroom when sizing the driver.

Example:

💡 A little driver headroom improves reliability and reduces nuisance overheating.

Step 2: Decide how the lights will be powered

1️⃣ Select plug-in or hard-wired supply

There are generally two compliant approaches:

For rental-friendly or simpler installs, a plug-in driver hidden in an overhead cabinet is often the easiest solution, provided the socket location is suitable and accessible.

2️⃣ Choose the driver location

Place the driver in a dry, ventilated, accessible location such as the top shelf of a cabinet or adjacent cupboard. Avoid placing it directly above steam, near a cooktop, or in a sealed cavity with no airflow.

3️⃣ Plan cable routes

Map how low-voltage cable will run from the driver to each strip section. Drill neat holes through cabinet sides or shelves where needed and protect cables from sharp edges.

⚠️ If you need a new socket, concealed mains cable, switch connection or hard-wired driver, that work must be done by a licensed electrician.

Step 3: Prepare the mounting surface

1️⃣ Mark the position

Use a pencil and level to mark the mounting line under the cabinets. Position the strip or profile so the diffuser is hidden from normal standing view but still throws light toward the front half of the benchtop.

2️⃣ Clean thoroughly

Wipe the underside of the cabinet with isopropyl alcohol to remove grease, dust and polish residue. Kitchen surfaces often look clean but have enough grease to cause adhesive failure.

3️⃣ Test-fit profiles and cable paths

Dry-fit the aluminium profile and confirm corners, joins and cable entry points before fixing anything permanently.

💡 Aluminium profile improves heat dissipation, protects the strip and gives a much more professional finish than sticking LED tape directly to melamine.

Step 4: Install the aluminium profile or mounting track

1️⃣ Cut the profile to length

Cut the aluminium channel to suit each cabinet section. Deburr cut edges so they do not damage cable insulation.

2️⃣ Fix the profile

Install the profile using mounting clips or small screws as per the manufacturer’s instructions. Keep the line straight and consistent across cabinet runs.

3️⃣ Fit end caps where supplied

If using profile systems with end caps and cable entry holes, fit these now or after cable pull-in depending on the design.

💡 Where there are multiple cabinet sections, separate profile lengths usually look neater than trying to bridge gaps with exposed strip.

Step 5: Cut and mount the LED strip

1️⃣ Cut only at marked points

LED strip can only be cut at the designated scissor or copper pad markings. Measure carefully before cutting.

2️⃣ Attach connectors or tails

Fit soldered tails or approved strip connectors to each section. Observe polarity markings carefully: positive to positive, negative to negative.

3️⃣ Stick the strip into the profile

Peel the backing and press the strip firmly into the aluminium channel. Avoid twisting or bending the strip sharply, especially at solder joints.

4️⃣ Install the diffuser

Clip the diffuser into the profile once the strip is secured and tested.

⚠️ Do not mount LED strip directly onto dirty, flaky or hot surfaces. Poor adhesion is one of the most common failures.

Step 6: Run and secure the low-voltage wiring

1️⃣ Pull low-voltage cable neatly

Run the cable through cabinet penetrations to each strip section. Keep cable lengths as short as practical to minimise voltage drop.

2️⃣ Support and protect the wiring

Use cable clips, adhesive mounts or saddles so the wiring is tidy and not hanging loose inside cabinets.

3️⃣ Make low-voltage connections

Join cables using suitable low-voltage connectors, solder and heat-shrink, or manufacturer-approved quick connectors. Maintain correct polarity throughout.

4️⃣ Consider parallel wiring for multiple runs

For more even brightness, multiple strip sections are often better wired in parallel back to the driver rather than daisy-chained end-to-end.

💡 If the total run is long, upsizing the low-voltage cable helps reduce voltage drop and uneven brightness.

Step 7: Connect the driver and switching arrangement

1️⃣ Match voltage and load

Confirm the driver output voltage matches the strip exactly, for example 24V DC strip to 24V DC driver.

2️⃣ Connect the low-voltage side

Terminate the strip cable into the driver output terminals as per the manufacturer’s polarity markings.

3️⃣ Arrange switching

Common switching options include:

4️⃣ Have mains work completed by a licensed electrician

Any mains-side connection, new switch, GPO, hard-wired driver or alteration to fixed wiring must be carried out by a licensed electrician in accordance with AS/NZS 3000.

Step 8: Test the installation

1️⃣ Inspect all physical fixing points

Check profile alignment, cable support, connector tightness and diffuser fitment.

2️⃣ Energise and test operation

Turn on the system and verify:

3️⃣ Check light spread on the benchtop

Stand at normal working position and confirm the strip is not glaring into eye level. Adjust location if required before finalising.

4️⃣ Confirm accessibility

Ensure the driver remains accessible for future maintenance or replacement.

Step 9: Final tidy-up and maintenance advice

1️⃣ Label and document if needed

If installed as part of a broader electrical upgrade, your electrician may label the supply arrangement or note the driver location for future servicing.

2️⃣ Clean the diffuser

Remove fingerprints and dust from the diffuser for the best finish.

3️⃣ Maintain the system

Periodically check for:

💡 Good-quality strip, profile and driver matter more than chasing the cheapest kit. Cheap drivers are the most common point of failure.

Common Mistakes to Avoid

Pro Tips

Recommended Tools

⚠️ Safety

🔒 Licensing

🔧 Recommended Tools