How to Install Under Cupboard Lights: Step-by-Step Guide

Mississauga Jul 01, 2026

Transforming your kitchen into a well-lit, inviting space is easier than you think with under-cabinet lights. Not only do they provide task lighting for food prep and cooking, but they also add a warm, ambient glow that enhances your kitchen's overall aesthetic. Here's a comprehensive guide on how to install under-cabinet lights, ensuring your project is both functional and visually appealing.

a man working on cabinets in a kitchen
a man working on cabinets in a kitchen

Before you begin, it's crucial to choose the right type of under-cabinet lighting. LED strip lights are popular due to their energy efficiency, long lifespan, and wide range of colors and brightness levels. They also come in various lengths, making them easy to customize for your cabinet dimensions.

a kitchen with wooden cabinets and granite counter tops that says diy under cabinet lighting you can do
a kitchen with wooden cabinets and granite counter tops that says diy under cabinet lighting you can do

Preparation and Planning

Before you start, measure the length of your cabinets to determine how many feet of LED strips you'll need. Also, consider the power supply requirements and ensure you have the necessary outlets or plan to install new ones.

The Easiest Way to Add Lights Under Kitchen Cabinets
The Easiest Way to Add Lights Under Kitchen Cabinets

Gather your tools: LED strips, power supply, scissors (for cutting the strips if needed), measuring tape, pencil, drill (for mounting the strips and outlets), wire stripper, and electrical tape. Safety first – ensure you turn off the power at your circuit breaker and use a non-contact voltage tester to confirm the wires are dead.

Installing the Power Supply

How To Hide Under Cabinet Lighting Wires: Plus Bonus Ideas! - Unhurried Interior
How To Hide Under Cabinet Lighting Wires: Plus Bonus Ideas! - Unhurried Interior

Choose a location for your power supply, typically near an outlet or where you can easily connect it to a junction box. Mount the power supply using the provided hardware, ensuring it's secure and won't be accidentally dislodged.

Connect the power supply to the LED strips using the provided connector. Make sure the polarity is correct – positive to positive and negative to negative. Test the lights to ensure they're working before proceeding.

Mounting the LED Strips

How To Install Undercabinet LED Lighting
How To Install Undercabinet LED Lighting

Start by measuring and marking the center point of your cabinets where you'll begin installing the LED strips. Use a drill to create pilot holes for the mounting screws or adhesive pads provided with your strips. Ensure the holes are level and evenly spaced.

Begin at the center point and work your way outwards, securing the LED strips to the underside of your cabinets. If you need to cut the strips, do so at the marked cut lines, ensuring you don't damage the copper contacts. Use electrical tape to connect any strips together, maintaining the correct polarity.

Connecting the Wires

How to Install Under Cabinet Lighting in Your Kitchen
How to Install Under Cabinet Lighting in Your Kitchen

Once the LED strips are mounted, connect the wires from the power supply to the strips, ensuring the polarity is correct. Use wire nuts or electrical tape to secure the connections and prevent any exposed wires from touching.

Test the lights again to ensure they're working and provide even illumination across your cabinets. If necessary, adjust the brightness or color temperature using the power supply's controls or a remote (if included).

a man kneeling on the floor in front of a kitchen counter with an ad taped to it
a man kneeling on the floor in front of a kitchen counter with an ad taped to it
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How to Add Under Cabinet Lighting: A DIY Guide for kitchens
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an image of a kitchen with plumbing and cabinets
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Safety Checks and Final Touches

After everything is connected and working, turn the power back on at your circuit breaker and test the lights one last time. Ensure there are no exposed wires or loose connections that could pose a safety hazard.

Add any final touches, such as installing outlet covers or trimming any excess wire. Now, sit back and enjoy the warm, inviting glow of your newly installed under-cabinet lights, knowing you've transformed your kitchen into a well-lit, functional space.

With your new under-cabinet lights, you've not only enhanced your kitchen's ambiance but also improved its functionality. Consider exploring other lighting options, such as pendant lights or smart bulbs, to further elevate your space. Happy lighting!