Lepro US | Smart Lighting | Indoor & Outdoor Lights

How to Install Lepro LED Strip Lights Under Kitchen Cabinets: A Step-by-Step Guide

How to Install Lepro LED Strip Lights Under Kitchen Cabinets: A Step-by-Step Guide

By Lepro US | Smart Lighting | Indoor & Outdoor Lights | Published: 2026-09-05

Category: How-to Guides

Learn how to install Lepro LED strip lights under kitchen cabinets with this step-by-step guide, covering planning, power connection, adhesive setup, and common mistakes to avoid.

Quick Answer

To install Lepro LED strip lights under kitchen cabinets, measure your cabinet lengths, select a strip that matches (non-cuttable models require exact sizing), clean the surface, peel and stick the adhesive backing, then connect to a compatible 12V power adapter within the wattage limit. Always verify voltage and total wattage before plugging in.

Under cabinet LED lighting can transform your kitchen workspace, making food prep safer and adding a modern glow. Lepro offers flexible and smart strip light options, but a successful installation starts with planning—especially when it comes to power and adhesion.

This guide walks you through the process step by step, from measuring and choosing the right strip to connecting power and securing the adhesive. We'll also highlight common mistakes so you can avoid them.

Measure Your Cabinet Lengths

Before buying or cutting, measure the underside of each cabinet where you plan to place the lights. Use a tape measure and note the exact length in feet or inches. If you have multiple sections, measure each one separately—they often differ.

Some Lepro strip lights, like the SW1 AI Smart Outdoor LED Strip Lights, cannot be cut, so you must select a length that closely matches your requirements. For cuttable options, like the Lepro Flexible LED Light Strip (16.4ft, Daylight White, Cuttable), you can trim to size, but always measure twice before cutting.

Lepro Flexible LED Light Strip (16.4ft, Daylight White, Cuttable)
Lepro Flexible LED Light Strip (16.4ft, Daylight White, Cuttable)
  • Measure each cabinet section individually, not just the total length.
  • If your strip is non-cuttable, choose a length that matches or slightly exceeds the cabinet length—you can tuck extra length out of sight.

Choose the Right Strip for Your Needs

Lepro offers different strip lights for different purposes. For under cabinet use, you want a strip that is bright enough for task lighting, easy to install, and compatible with your power source. The Lepro Flexible LED Light Strip (16.4ft, Daylight White, Cuttable) is a practical choice for many kitchens because it can be trimmed to fit and uses a standard 12V adapter.

If you prefer smart control and dynamic effects, the Lepro SW1 AI Smart Outdoor LED Strip Lights might appeal, but remember it's designed for outdoor use and cannot be cut. For kitchen under cabinet lighting, a cuttable strip is usually more flexible. Also, check the color temperature: daylight white is often preferred for task areas, while warm white creates a cozier feel.

Lepro SW1 AI Smart Outdoor LED Strip Lights
Lepro SW1 AI Smart Outdoor LED Strip Lights
  • Daylight white (5000K-6500K) is ideal for task lighting under cabinets.
  • Consider whether you want smart features or simple on/off control.

Prepare the Surface and Adhesive

The adhesive backing on Lepro strip lights is strong, but it only sticks well to clean, dry, and smooth surfaces. Wipe the underside of your cabinets with a damp cloth and mild detergent, then dry thoroughly. Avoid dusty or textured surfaces—the adhesive may not hold.

If you're installing on a textured or uneven surface, consider using additional mounting clips or double-sided tape. The Lepro Flexible LED Light Strip has a self-adhesive back that is touchable and safe for children, but proper surface prep is key to preventing sagging later.

  • Use rubbing alcohol for a grease-free surface—especially important in kitchens.
  • Press firmly along the entire strip after application to ensure a strong bond.

Connect to a Compatible Power Adapter

Power is the most common point of confusion. The Lepro Flexible LED Light Strip requires a 12V power adapter, which is not included. Never use an adapter higher than 12V, as this can damage the strip. Also, check the total wattage: the strip is 18W, so your adapter must handle at least that much.

For the Lepro SW1 AI Smart Outdoor LED Strip Lights, note that it is only compatible with the Lepro app—not the 'Lepro Lampux' or 'Smart Life' apps. It also does not come with a remote, as the app offers more features. Plan your power source location so the adapter can reach an outlet without stretching the cable.

  • Always check the voltage and wattage of your adapter before connecting.
  • If you're connecting multiple strips, add up the total wattage and ensure your adapter can handle it.

Test the Lights Before Final Mounting

Before you press the strip into place permanently, plug it in and test all sections. This is the time to check brightness, color, and any smart features. If something isn't working, it's much easier to troubleshoot before the adhesive is fully set.

If you're using a smart strip like the SW1, download the Lepro app and follow the pairing instructions. Make sure your Wi-Fi signal is strong in the kitchen area. Once everything works, proceed with the final mounting.

  • Test the strip on the floor or a table before installing under cabinets.
  • If using a smart strip, ensure the app is connected before final placement.

Step-by-Step Installation Checklist

  1. Measure and plan: Measure each cabinet section and decide on strip length. If using a non-cuttable strip, choose a length that matches or slightly exceeds the cabinet length. Checkpoint: Double-check measurements before purchasing or cutting.
  2. Clean the mounting surface: Wipe the underside of cabinets with a damp cloth and mild detergent, then dry thoroughly. For greasy areas, use rubbing alcohol. Checkpoint: Surface must be dry and smooth for the adhesive to hold.
  3. Peel and stick the strip: Remove the adhesive backing and press the strip firmly along the cabinet underside. For cuttable strips, cut at marked lines before peeling. Common mistake: Not pressing firmly enough can cause sagging later.
  4. Connect the power adapter: Use a 12V adapter (not included) and ensure the total wattage of all connected strips does not exceed the adapter's max wattage. Never use an adapter higher than 12V. Checkpoint: Verify voltage and wattage before plugging in.
  5. Test and adjust: Plug in and test all sections. If using a smart strip, pair with the Lepro app. Adjust brightness or color as needed before finalizing. Common mistake: Skipping the test can lead to rework after adhesive is set.

Product Facts to Know Before You Buy

  • Lepro Flexible LED Light Strip (16.4ft, Daylight White, Cuttable): Power adapter not included. Please use it with your 12V power adapter. Safe to use. The working voltage is 12V, extremely low heat. Please do not use power adapter that is higher than 12V to supply. The wattage is 18W, Please be kindly informed that the total wattage of LED strip lights should not exceed the max wattage of power adaptor. It is touchable and safe to children. Easy Installation. Self-adhesive back. This strip is ideal for under cabinet use because it's cuttable and runs on a standard 12V adapter, but you must supply the adapter and respect the wattage limit.
  • Lepro SW1 AI Smart Outdoor LED Strip Lights: Warm Tips Before Purchase: 1Please select a length that closely matches your requirements, as the strip lights cannot be cut. 2This SW1 waterproof strip light is only compatible with the Lepro app (not compatible with the 'Lepro Lampux' or 'Smart Life' app). 3No remote, as the remote only offers a few fixed modes. We have released more exciting features and DIY designs on our app, which is continuously updated. If you're considering a smart strip, remember it's non-cuttable and app-only, so measure carefully and be ready to control it via your phone.

Under cabinet LED lighting can be a weekend project that instantly upgrades your kitchen's functionality and style. By measuring carefully, choosing the right strip, and respecting power requirements, you'll enjoy reliable task lighting for years. For more lighting ideas and product details, explore Lepro's range of strip lights and smart lighting solutions.

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