How Do Under Cabinet LED Lights Work?

25 minutes read

Under cabinet LED lights work by using light-emitting diodes (LEDs) to provide illumination beneath cabinets, usually in kitchens or workspaces. These LEDs are semiconductor devices that emit light when an electric current passes through them. The lights are connected to a power source, often through direct wiring or plug-in adapters, allowing them to function efficiently with lower energy usage compared to traditional lighting options. These lights often come with features such as dimming capabilities and adjustable color temperatures to suit various needs and preferences. The setup can be controlled via switches, remote controls, or smart home systems, enabling users to customize the lighting according to their requirements. The compact and energy-efficient nature of LED technology makes these lights a popular choice for providing unobtrusive, yet effective, task lighting.

Best Under Cabinet LED Lights of February 2025

1
EZVALO Under Cabinet Lights, LED Closet Lights Wireless USB Charging, Motion Sensor Lighting Indoor 5700K Dimmable with Remote Control (White) 5 Pack

Rating is 5 out of 5

EZVALO Under Cabinet Lights, LED Closet Lights Wireless USB Charging, Motion Sensor Lighting Indoor 5700K Dimmable with Remote Control (White) 5 Pack

  • 【USB Rechargeable & Energy Saving】 — With a 1600mAh rechargeable battery, the motion sensor light indoor offers enhanced versatility. In Always-On mode, it can stay illuminated for 8-9 hours with the maximum brightness. In AUTO mode, it can last for 30-60 days with an illumination frequency of 10-20 times daily for 20s each.The motion sensor light utilize Grade A+ Lithium-Polymer batteries with high energy density and long cycle life. ( Charging: Red Light, Charged:Green Light )(Please charge before first use
  • 【Wireless Installation】— The closet lights has magnets and a 9mm thick body, allowing for direct attachment to magnetic metal surfaces or secure snapping onto mounting strips for non-iron surfaces. This under cabinet lights can be easily removed for temporary lighting needs, recharging, or repositioning.
  • 【4 Modes, Dimming & Timer】— Comes with a remote control, you can choose from ON-AUTO(Day/Night)-OFF modes. [Auto mode] is suitable for general purposes, for general purposes, with timer and dimming settings available on the remote control. Select [Always-On] for specific tasks, and [Always-Off mode] for energy-saving.You can adjust brightness from 0% to 100% by pressing the button of the remote control. You can use it as the under cabinet lighting or place it in higher closets, controlling them remotely.
2
Under Cabinet Lights,40 LED Rechargeable Battery Operated Motion Sensor Light Indoor, 2 Pack Magnetic Dimmable Closet Lights, Wireless Under Counter Lights for Kitchen, Stairs

Rating is 4.9 out of 5

Under Cabinet Lights,40 LED Rechargeable Battery Operated Motion Sensor Light Indoor, 2 Pack Magnetic Dimmable Closet Lights, Wireless Under Counter Lights for Kitchen, Stairs

  • Upgraded Motion Sensor Under Cabinet Lights: Setting the under cabinet lights on motion sensor mode, they auto-on when human motion is detected within 120°and 10ft in a dark or low light environment, and auto-off after about 20 seconds of no motion detected. No longer have to worry about tripping on the step in the dark trying to turn on the switch
  • Always-on Mode: The under counter lights for kitchen can be also be set to be always-on, or off. The always-on feature allows you use the motion sensor lights on daytime for a long time task. It can be used in reading, camping and as a flashlight
  • Upgraded Dimmable Closet Lights: The cabinet lights are bright and eye-protection, thanks to 40pcs energy-saving LEDs and a non-glare frosted cover. In addition, unlike fixed brightness of others', our motion sensor light indoor has 5 levels of brightness. So the dimmable under cabinet lighting allows you to brighten them for task like meal preparation and dim them for a motion sensor night light without waking other people up at midnight
3
Under Cabinet Lighting, LED Battery Operated Rechargeable Motion Sensor Night Lights Indoor, 2200mAh Magnetic Wireless Closet Lights, 6500K Dimmable Under Counter Lights for Kitchen, Stair, 3 Packs

Rating is 4.8 out of 5

Under Cabinet Lighting, LED Battery Operated Rechargeable Motion Sensor Night Lights Indoor, 2200mAh Magnetic Wireless Closet Lights, 6500K Dimmable Under Counter Lights for Kitchen, Stair, 3 Packs

  • Please note that: 1.Kindly use the provided cables to charge these under cabinet lighting fixtures, as other cables might not be compatible and could result in battery malfunction. 2.Avoid positioning the sensors of the two lights too closely together, as this may lead to operational issues
  • Large 2200mAh Battery: Our under cabinet lights, feature a built-in 2200mAh rechargeable battery, extending their working hours and reducing the need for frequent charging. When fully charged, these under counter lights can last from 10 hours in Always On Mode with the brightness set to 100%. In Motion Sensor Mode, if sense 10-20 times a day, they can operate for 40 to 60 days
  • Free Cables for Fast Charging: Utilize the complimentary fast charging cable provided, which not only fully charges your device within 3 to 4 hours but also extends battery life, reducing the frequency and cost of battery replacements, and enjoy the added convenience of our wireless under cabinet lights. (Note: Please use the cable we provide for charging, otherwise may result in slower charging speeds and shortened battery lifespan)
  • Upgraded Two Operating Modes: Our 6500K LED under cabinet lights seamlessly switch between two operating modes: ①Always On Mode: Ensures illumination in any lighting environment.②Motion Sensor Mode: Automatically detects human activity and turns off when no activity is detected to reduce energy consumption. Additionally, it features a memory function that retains the last set brightness level, eliminating the need for resetting
  • Convenient Under Cabinet Motion Sensor Lighting: The Motion Sensor boasts detection angle of 120° and a sensing range of 10FT, ensuring comprehensive coverage of large areas and enhancing both ease of use and comfort. Additionally, the rechargeable under cabinet lights automatically switch off after 20 seconds of inactivity, promoting energy efficiency. By eliminating the need to search for switches in the dark, they offer significant convenience to you and your family
  • Simple Stepless Dimming: With stepless dimming from 10%-100%, the kitchen cabinet lights enable you to tailor the brightness to your preferences and requirements, offering unparalleled comfort and customized lighting choices
4
LED Closet Light with Charging Station, 6 Pcs Dimmer Rechargeable Motion Sensor Under Cabinet Lighting with Remote Control, Wireless Stick-Anywhere Night Light for Wardrobe,Kitchen

Rating is 4.7 out of 5

LED Closet Light with Charging Station, 6 Pcs Dimmer Rechargeable Motion Sensor Under Cabinet Lighting with Remote Control, Wireless Stick-Anywhere Night Light for Wardrobe,Kitchen

  • STORABLE MULTI-DEVICE CHARGING STATION -- Built-in 1000mAh rechargeable battery, it can be used for 10-20 days in induction mode after fully charged. The organizer charging stand can charge three LED homelife lights at once after connected the USB cable, and you can charge each motion sensor closet light individually. It's not only a charging stand, but also a good helper for storage space and keeps your desktop neat and tidy. Non-Slippery bottom prevents the charging station from sliding.
  • DIMMABLE AND TIMING -- These dimmable closet lights come with a remote. In "ON" mode, the light will turn on all the time, and it can works with the remote control. There are 2 ways of adjustable brightness: ①10%/50%/100% brightness, ② Step-less Dimming: pressing the +/- button of the remote control. And it has Timing Function with: 10, 30, 60 or 120 mins. ( Note: the remote control do not work for "Auto Mode". )
  • MOTION & NIGHT SENSOR -- These led cabinet lights with 2 sensor modes: Night Mode and Day Mode. They can detect the motion of human in the dark or daytime. Automatically open within 10ft/120°, automatically shut down after about 15 seconds after no motion is detected. Size: 8'' x 1.57'' x 0.63''.
5
Auxoda Under Cabinet Lighting, 2 Pack Motion Sensor Light Indoor, Rechargeable Closet Lights Battery Operated, LED Lights for Bedroom, Wireless Dimmable Cabinet Lights, Motion Sensor Step Night Light

Rating is 4.6 out of 5

Auxoda Under Cabinet Lighting, 2 Pack Motion Sensor Light Indoor, Rechargeable Closet Lights Battery Operated, LED Lights for Bedroom, Wireless Dimmable Cabinet Lights, Motion Sensor Step Night Light

  • Smart Motion Sensing Technology: With a 10-foot, 120-degree sensing range, our motion sensor light indoor activates upon detecting movement, providing hands-free convenience. After 20 seconds of no motion, it automatically switches off to conserve energy.
  • Eye-Care Gradual Brightening: Our under cabinet lights gradually brighten to avoid sudden glare, providing gentle illumination that safeguards your eyes.
  • 36 Straight-Emitting LEDs: Compared to side-emitting, our under counter lights for kitchen offer higher luminous efficiency and greater energy savings, ensuring superior brightness while consuming less power.
  • Long-lasting Illumination: Featuring a high-capacity battery, our rechargeable battery operated lights offer up to 60 days of continuous use in sensor mode, addressing your need for lighting without frequent charging.
  • 4 Lighting Modes: Choose from four versatile modes: always on, day, night, and off. Day mode activates when motion sensed in all light conditions, night mode activates when motion sensed in low light conditions, ensuring energy efficiency and light only when you need it.
  • Adjustable Brightness Levels: According to your preference, tap for 4-level dimming from 25%, 50%, 75%, or 100% brightness options, long press for seamless dimming adjustment, providing the perfect under cabinet lighting for any occasion.
6
UltraPro 24 inch Hardwired Under Cabinet Lights, 3 Color Settings - 2700K/4000K/5000K - Warm White, Cool White, and Daylight, Under Cabinet Lighting, Dimmable Under Counter Lights for Kitchen, 45368

Rating is 4.5 out of 5

UltraPro 24 inch Hardwired Under Cabinet Lights, 3 Color Settings - 2700K/4000K/5000K - Warm White, Cool White, and Daylight, Under Cabinet Lighting, Dimmable Under Counter Lights for Kitchen, 45368

  • White Select Bright Select – Compatibility with in-wall LED dimmer gives user control over brightness while you can select which white color you want: 2700K soft; 4000K bright; 5000K daylight to ensure aesthetically appealing appearance
  • Easy Installation – Includes mounting hardware for hardwired installation while push-in connectors allow fast and easy install
  • Worry-Free – Limited-lifetime offers peace of mind
  • LED Lights – Long-life, energy-efficient LED technology eliminates need for replacement bulbs
7
Under Cabinet Lighting, LED Motion Sensor Light Indoor, 2200mAh USB Rechargeable Closet Lights Battery Operated, Stick On Magnetic Wireless Dimmable Under Counter Lights for Kitchen, Stairs (2 Pack)

Rating is 4.4 out of 5

Under Cabinet Lighting, LED Motion Sensor Light Indoor, 2200mAh USB Rechargeable Closet Lights Battery Operated, Stick On Magnetic Wireless Dimmable Under Counter Lights for Kitchen, Stairs (2 Pack)

  • 【Long-Lasting Battery & USB Charging】Experience uninterrupted illumination with our LED under cabinet lighting, featuring a 2200mAh high-capacity rechargeable battery. In "always on" mode, it can work at maximum brightness for 10 hours. Switch to automatic sensor mode for continuous operation lasting 40-60 days. With USB-C charging, enjoy faster charging times, fully replenishing the battery in just 2 hours (2 USB-C cables included).
  • 【Smart Motion Sensor】When our motion sensor light indoor detects someone moving within 10 feet/120°, it will gradually light up, which can effectively alleviate the discomfort and damage to the eyes caused by sudden exposure. When no movement is detected within 20 seconds, it will automatically shut down slowly, not only saving energy but also reducing the risk of accidents in the dark.
  • 【4 Lighting Modes】Our stair lights provide multiple working modes to meet different preferences and situations. [Always Off] and [Always On] modes provide manual control so you can keep the lights on during long missions. Auto mode adds convenience and energy efficiency, turning the lights on only when needed. Add an extra layer of customization between [Day Mode] and [Night Mode] so you can enjoy sensor lighting day or night!
  • 【Upgraded Dimmable Closet Lights】Illuminate your space with precision using our rechargeable under cabinet lighting. With 62 LED beads emitting up to 160 lumens of bright, soft, non-glaring white light, enjoy tailored brightness levels from 25%, 50%, 75%, to 100%. Our closet lights motion sensored offers stepless dimming from 10% to 100%, remembering your preferred setting for convenience.
8
Under Cabinet Lights,76 LED Operated Motion Sensor Light Indoor,1500mAh USB Rechargeable Closet Lights, 2 Pack Magnetic Dimmable Closet Lights,Wireless Under Counter Lights for Kitchen, Stairs

Rating is 4.3 out of 5

Under Cabinet Lights,76 LED Operated Motion Sensor Light Indoor,1500mAh USB Rechargeable Closet Lights, 2 Pack Magnetic Dimmable Closet Lights,Wireless Under Counter Lights for Kitchen, Stairs

  • 【Smart Motion Sensor】: Setting the under cabinet lights on motion sensor mode, they auto-on when human motion is detected within 120°and 10ft in a dark or low light environment, and auto-off after about 18 seconds of no motion detected. No longer have to worry about tripping on the step in the dark trying to turn on the switch.
  • 【Always-on Mode】:In "always on" mode, it can work at maximum brightness for 10 hours. Switch to automatic sensor mode for continuous operation lasting 40-60 days. With USB-C charging, enjoy faster charging times, fully replenishing the battery in just 2 hours
  • 【Dimmable Closet Lights】:Illuminate your space precisely with our rechargeable cabinet lighting. 76 LED beads emit a bright, soft, non-dazzling white light of up to 180 lumens and enjoy tailor-made brightness levels ranging from 25%, 50%, 75% to 100%. Our wardrobe light motion sensors offer stepless dimming from 10% to 100%, keeping your preferred Settings in mind for convenience.
9
Maylit Under Cabinet Lights Plug in, 3 Pcs 12 Inch Ultra Thin Under Cabinet Lighting, Super Bright Daylight White Under Counter Lights for Kitchen, Dimmable Light for Cabinet, Counter, Workbench, Desk

Rating is 4.2 out of 5

Maylit Under Cabinet Lights Plug in, 3 Pcs 12 Inch Ultra Thin Under Cabinet Lighting, Super Bright Daylight White Under Counter Lights for Kitchen, Dimmable Light for Cabinet, Counter, Workbench, Desk

  • 【Super Bright】With 81 high brightness LEDs, 1200 lumens(3 Pcs), 6000K daylight white, super bright, perfect to light your kitchen cabinets, garage, shelf area, closets, desk, workbench, stairs etc.
  • 【Unique Touch Dimmer】With smart touch dimmer, touch to adjust brightness and turn ON/OFF. Long touch to adjust brightness from 1%-100%, short touch to turn ON/OFF.
  • 【Ultra Thin】0.25inch ultra thin, thin enough to hide perfectly under your cabinets, counters and workspace etc, make your lighting look very neat and clean.


What is the ideal placement for under cabinet LED lights?

The ideal placement of under cabinet LED lights is crucial for both aesthetics and functionality. Here are some guidelines to help you achieve optimal results:

  1. Front of the Cabinet: Position the LED lights toward the front edge of the cabinet. This minimizes shadows on your workspace and maximizes the light distribution over the counter.
  2. Avoid Direct View: Ensure the lighting fixture is not directly visible when you are standing or sitting. This reduces glare and ensures a clean look.
  3. Spacing: If using individual puck lights, space them evenly every 8-12 inches. This creates uniform lighting without dark spots. For strip lights, ensure they cover the entire length of the cabinet for continuous illumination.
  4. Distance from Backsplash: Install the lights approximately 1-2 inches from the backsplash to ensure the light spreads evenly over the workspace and avoid over-reflection.
  5. Consider Cabinet Lip: If your cabinets have a lip or trim, make sure the lights are set back enough to be concealed by it. This helps hide the light strip or fixtures from direct view.
  6. Task vs. Accent Lighting: Decide if the primary purpose is task lighting or accent lighting. For task lighting, prioritize functionality; for accent lighting, you might focus on highlighting specific areas or features.
  7. Power Source: Plan the placement in relation to available power sources. The positioning should be convenient for wiring, especially if you're hard-wiring the lights.
  8. Dimming Options: Consider installing dimmable lights or include a dimmer switch. This allows you to adjust the brightness according to your needs and create the desired ambiance.


Following these guidelines should help you achieve effective and aesthetically pleasing under cabinet lighting that enhances your kitchen or workspace functionality and style.


How can under cabinet lighting be used in other rooms besides the kitchen?

Under cabinet lighting is quite versatile and can be used effectively in various rooms throughout the home to enhance both functionality and aesthetics. Here are some ideas:

  1. Bathroom: Use under cabinet lighting beneath vanity cabinets to provide soft illumination that helps during nighttime visits without the need for harsh overhead lights. It can also highlight decorative details on your vanity.
  2. Home Office: Install under cabinet lights beneath shelves or cabinets to ensure your desk area is well-lit. This setup reduces eye strain and creates a focused light source for tasks without lighting up the entire room.
  3. Living Room: Add subtle lighting under shelves or inside entertainment units to highlight decor, books, or media equipment. It creates a warm atmosphere and can serve as ambient lighting during movie nights.
  4. Bedroom: Use under cabinet lighting in closets or wardrobes to make it easier to see clothing and accessories. It can also be installed under floating nightstands to provide soft, ambient light.
  5. Hallways and Entryways: Install under cabinet lighting along baseboards or under console tables to softly illuminate these areas. This can create a welcoming glow and improve safety without overpowering the space.
  6. Laundry Room: Enhance task lighting by adding under cabinet lights above counters or under shelves. This can make sorting and folding clothes easier and more efficient.
  7. Dining Room: If you have built-in cabinets or a buffet in the dining area, under cabinet lighting can be used to highlight these features or provide subtle lighting during dinners and gatherings.
  8. Workshop or Garage: Use under cabinet lighting to illuminate workbenches, making detailed tasks easier and safer by improving visibility without relying on overhead fixtures alone.
  9. Bar Area: In home bars or beverage stations, under cabinet lighting can highlight liquor collections or glassware and enhance the ambiance.


Installing under cabinet lighting in these areas can improve both utility and mood, making spaces more functional and enjoyable.


How do you troubleshoot under cabinet LED light issues?

Troubleshooting under cabinet LED light issues involves a step-by-step approach to identify and resolve the problem. Here’s a general guide to help you:

  1. Check the Power Source: Ensure that the power supply is connected and working. Check if the outlet is functional by plugging in another device. Verify that the switch controlling the lights is in the "on" position.
  2. Inspect the LED Driver or Transformer: If your LED lights are connected to a driver or transformer, ensure it is operational. Look for any indicator lights on the driver that might signal a problem. Use a multimeter to check the output voltage from the driver or transformer to ensure it’s delivering the correct voltage.
  3. Examine Connections and Wiring: Inspect all connectors and wires for loose connections, frayed wires, or corrosion. Re-secure any loose connections. Pay special attention to the connections at the LED strips or bars themselves.
  4. Check the LED Strips or Bars: Look for any visible damage to the LED strips, such as burnt or broken LEDs. Test sections of the strip individually if possible. Sometimes just a portion of the strip might be damaged, affecting the whole chain.
  5. Test with a Multimeter: Use a multimeter to check the continuity of the wiring and confirm there are no open circuits. Measure the voltage at different points in the circuit to confirm power is reaching the LEDs.
  6. Replace Faulty Components: If you identify a faulty LED driver or transformer, replacing it may solve the issue. For damaged or burnt-out LED strips, consider replacing the entire strip or section.
  7. Check for Overheating: Ensure that the installation has not blocked ventilation around the lights, as excessive heat can degrade LED lights. Verify that the correct voltage and wattage are being used to prevent overheating.
  8. Dimmer Switch Issues: If the lights are connected to a dimmer switch, ensure it's compatible with LED lighting. Incompatible dimmers can cause flickering or failure to operate. Try bypassing the dimmer to see if the lights work correctly without it.
  9. Look for Environmental Factors: Moisture or condensation might cause issues with under cabinet lighting in kitchens due to proximity to water sources. Ensure any moisture is addressed. Clean the lights and area around them to ensure there is no buildup of grease or dust that could affect functionality.


If after these steps your LED lights are still not working, you might need to consult with a professional electrician to assess more complex or hidden issues.


How do you install under cabinet LED lights?

Installing under-cabinet LED lights can be a great way to add both task and ambient lighting to your kitchen or workspace. Here’s a general guide on how to install them:

Materials and Tools Needed:

  1. Under-Cabinet LED Light Kit: Make sure you purchase a kit that suits your needs, whether it's plug-in or hardwired. Many kits include strips, puck lights, or bars.
  2. Measuring tape
  3. Screwdriver
  4. Drill and bits
  5. Adhesive strips or mounting clips
  6. Wire stripper/cutter (if installing hardwired lights)
  7. Screws and anchors (usually provided in the kit)
  8. Voltage Tester (if hardwiring)
  9. Pencil

Installation Steps:

  1. Plan the Layout: Determine where you want the LED lights installed by considering both the light coverage and power source. Choose locations that will effectively illuminate your workspace without direct visibility of the lights.
  2. Prepare the Surface: Clean the underside of the cabinets where the lights will be mounted. This ensures better adhesion for adhesive strips or mounting clips.
  3. Measure and Mark: Use a measuring tape and pencil to mark where the lights will be installed for even spacing and alignment.
  4. Mount the Lights: For Adhesive-backed strips: Peel off the backing and press the strips firmly onto the surface. For Mounting Clips: Attach the clips using screws; then snap the light bars into the clips. For Puck Lights: Usually mounted with screws or adhesive pads; follow the manufacturer’s instructions.
  5. Connect the Lights: If your lights are plug-in types, run the cords neatly and plug them into an outlet (use cord clips to manage cords). For hardwired installations, ensure the power is off using a voltage tester. Connect the wires according to the LED kit’s instructions—usually matching the color-coded wires (black to black, white to white). Secure the connections with wire nuts, then turn the power back on to test.
  6. Hide the Wiring: Use cable concealers or clips to neatly hide and secure any visible wires. This will improve aesthetics and prevent potential hazards.
  7. Test the Lights: Once installed, test the lights to ensure they function correctly and illuminate the intended areas adequately. Adjust the positioning slightly if necessary for optimal lighting coverage.
  8. Final Adjustments: If any lights are dimmable or come with remote controls, check their operation and make sure everything functions as expected.

Additional Tips:

  • Consider using under-cabinet lighting with a dimmer for adjustable ambiance.
  • If you're not comfortable with electrical tasks, or if hardwiring is involved, it may be best to hire a professional electrician.
  • For a more refined installation, you can install an in-line switch or touch sensor for ease of use.


Ensure to carefully follow the manufacturer's instructions specific to your LED light kit for the best results.

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