---
product_id: 1558521
title: "FMLSL 20840 M4 Square 14-Inch LED Flush Mount Light, 4000K, 1100 Lumens, 16 Watts, White (FMLSL 14 20840 M4)"
brand: "lithonia lighting"
price: "3906 kr"
currency: DKK
in_stock: true
reviews_count: 10
category: "Lithonia Lighting"
url: https://www.desertcart.dk/products/1558521-fmlsl-20840-m4-square-14-inch-led-flush-mount-light
store_origin: DK
region: Denmark
---

# 50,000 hours lifespan 16 watts ultra-efficient 1100 lumens bright FMLSL 20840 M4 Square 14-Inch LED Flush Mount Light, 4000K, 1100 Lumens, 16 Watts, White (FMLSL 14 20840 M4)

**Brand:** lithonia lighting
**Price:** 3906 kr
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your space, not your energy bill!

## Quick Answers

- **What is this?** FMLSL 20840 M4 Square 14-Inch LED Flush Mount Light, 4000K, 1100 Lumens, 16 Watts, White (FMLSL 14 20840 M4) by lithonia lighting
- **How much does it cost?** 3906 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/1558521-fmlsl-20840-m4-square-14-inch-led-flush-mount-light)

## Best For

- lithonia lighting enthusiasts

## Why This Product

- Trusted lithonia lighting brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless Dimming:** Compatible with most Leviton & Lutron dimmers for perfect ambiance control.
- • **Long-Lasting Glow:** Forget bulb changes for 23 years—50,000 hours of maintenance-free lighting.
- • **Brilliant Efficiency:** Save hundreds annually with Energy Star certified 16W LED brilliance.
- • **Sleek & Smart Design:** Matte white 14-inch square flush mount with easy cam-latch diffuser access.
- • **Versatile & Certified:** Ideal for damp locations, multi-family installs, UL & cUL certified in US & Canada.

## Overview

The Lithonia Lighting FMLSL 14-Inch LED Flush Mount delivers 1100 lumens of crisp 4000K cool white light using just 16 watts. Engineered for longevity with a 50,000-hour lifespan, this Energy Star certified fixture offers effortless dimming compatibility and easy installation with a sleek matte white finish. Perfect for indoor spaces from home offices to utility rooms, it meets rigorous UL and cUL standards and is rated for damp locations, ensuring reliable, maintenance-free illumination for years.

## Description

What White LED fixture Replaces my Incandescent one? -Currently using 80W, purchase 16W version -Currently using 100W, purchase 20W version -Currently using 120W, purchase 24W version -Currently using 150W, purchase 30W version -Currently using 220W, purchase 44W version What’s the Difference between the FMLRL/SL and the FMLRDL/SDL LED Ceiling Light Series? -FMLRL or FMLSL are LED flush mounts designed to last 50,000 hours and are more for commercial or hospitality applications that require fixture to be one for longer periods of time -FMLRDL or FMLSDL are LED flush mounts designed to last a little less and rated for 30,000 hours, which is still a very good. These are for your residential/multi fam applications Why Integrated LEDs are better than Light Bulbs? - Integrated LED fixtures last up to 5 times as many hours as LED light bulbs or 50 times longer than incandescent light bulbs without losing any brightness! -Maintenance Free! -No need to worry about LEDs burning out which happens often when LED light bulbs are installed in older fixtures that are not compatible - LED fixture does not generate as much heat as light bulbs because the fixture is designed to disperse heat efficiently -Turns on almost instantly! Electrical and other Important Information: -120V -Size: 11 inches -Shape: Square -Color Temperature: 4000K -Hours Rated: 50,000 hours -Lumens: 1,100 LM -Watts: 16W -Dimmability: Yes, and works with most incandescent dimmers -Energy Star Rated -UL Listed in the United States and in Canada -Suitable for Damp Locations Installation Tips: -Comes with mounting hardware to install on ceiling -Cam latch on top of fixture provides easy access to remove the diffuser for installation (shown in video) What is color temperature and which should I buy? 3000K: Used in family homes, hotels, coffee shops and other warm and sweet environments. 4000K: Most commonly found in office or commercial environments but also in garage or utility rooms Application Areas: White Ceiling Light is ideal for new constructions, remodels or retrofit installations. Closets, attics, hallways, bathrooms, pantry, kitchens, basements, foyers, bedrooms, offices, utility work areas, garages and other small areas

Review: Love this light - I put a home office in my basement and needed some new light. Most of my work in on a computer, so I'm rather particular about lighting and glare. I had never used a LED light, so I wasn't sure what to expect. To my delight, this light worked great for me. I got the 4000K, 67 lum, 14x14" model. For my taste, it puts out almost exactly what I want. I combined with a dimmer ( Leviton 6674-P0W SureSlide Universal 150-Watt LED and CFL/600-Watt Incandescent Dimmer, White, 1 Pack ). At night, I can dim the light a bit to get just enough light to not trip over something. The light produced is a soft white and there's no glare. For some people, just one of these, for a large enough space, probably wouldn't be enough. I purchased two, although when I got the first one up, decided it was enough for what I like. For a smaller room (I'm lighting up around 17x15'), it would likely be enough. If I were really wanting to light up a room wall to wall, one of the brighter units would be better I suspect. Installation was a dream. They put on their thinking caps when designing, so it's easy to get the base up (like putting up a ceiling fan), then attach the light to the base with two simple levers. I would definitely purchase again. I actually still have my second one sitting by my desk and didn't return because I want to find somewhere to put it in the house now.
Review: Very happy with this light fixture. - Very bright ceiling light like i wanted, exceeded my expectation. Replaced my fluorescent circle bulb ceiling light in my laundry room. Much brighter and light is evenly distributed 360 degrees around the room. Much better than recessed or flush mount which tend to emit light downwards like a spot light. Spent more money on this than i wanted but will save me money in long run since i will not have to buy expensive $20 replacement bulbs every year anymore. Installation can be a pain if you follow the instructions. I improvised on the install by pulling the fixture wires back through the metal base and running my existing electrical wires through the base plate before i mounted it to the ceiling. This allowed me to mount to ceiling and then make the connections, instead of attempting to make the connections while holding the fixture which is 12” square before mounting to the ceiling with the wires in the way. The fixture is LED which produces little to no heat, so making the connections inside the cover is not an issue. They do not affect the lighting either and are barely visible ( how often are you staring at the light directly anyway?) Doing it this way saved a lot of time and profanity on the install. Biggest issue was the existing ceiling mount where the screws attach the fixture to the ceiling did not match the fixture but they never do for me anyway so i didn’t expect them to. Again i improvised and had to use a washer on one side and no big deal. Excellent for laundry room, utility room, office or attic (if you have the wiring for it) or any space where you need it nice and bright so you can see. Much brighter than my previous fixture which makes it easier to do laundry and keep the room clean and neat.

## Features

- Energy Star Certified to save you hundreds of dollars every year and time since changing light bulbs is a thing of the past
- Cost Efficient LEDs are designed to last 50,000 hours or 23 years when on everyday for 6 hours/day - drastically reducing time wasted changing light bulbs
- Meets Highest Standards so perfect for Multi Family installation - Energy Star certified, cUL certified in the USA and Canada and certified for Damp Locations
- Very bright LEDs deliver general ambient lighting for surface-mount ceiling application
- Lithonia Lighting all white fixture works with most standard dimmers from Leviton and Lutron allowing the right level of light output and is easily installed
- Features a white acrylic diffuser. Hidden cam-latches provide easy diffuser removal for installation and maintenance.
- 14” units produce 1600 lumens, a 4000K cool white color temperature at 50,000 hours of service life.
- Fixture operates at 120 volts, 60Hz. Standard input = 24 watts. All mounting hardware included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00F94V89O |
| Assembly Required | Yes |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #53,474 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #509 in Close To Ceiling Light Fixtures |
| Brand | Lithonia Lighting |
| Brightness | 1600 |
| Bulb Base | GU24 |
| Color | 4000K |
| Color Temperature | 4000 Kelvin |
| Control Method | App |
| Customer Reviews | 4.5 4.5 out of 5 stars (894) |
| Date First Available | August 20, 2013 |
| Efficiency | High |
| Finish | Matte White |
| Finish Type | Matte White |
| Fixture Type | Non Removable |
| Global Trade Identification Number | 00753573687467, 30753573687468 |
| Included Components | 1 |
| Indoor/Outdoor Usage | Indoor |
| Installation Type | Flush Mount |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.5 pounds |
| Item model number | FMLSL 14 20840 M4 |
| Light Color | Cool White |
| Light Source Type | LED |
| Light fixture form | Ceiling |
| Lighting Method | Downlight |
| Manufacturer | Lithonia |
| Material | Acrylic |
| Measurement System | English/Standard |
| Model Name | FMLSL 14 20840 M4 |
| Mounting Type | Protruding |
| Number Of Pieces | 1 |
| Number of Handles | 1 |
| Number of Items | 1 |
| Number of Light Sources | 1 |
| Part Number | FMLSL 14 20840 M4 |
| Plug Format | A- US style |
| Power Source | Corded Electric |
| Product Dimensions | 14"L x 14"W x 14"H |
| Room Type | Basement, Bathroom, Bedroom, Garage, Hallway, Home Office, Kitchen, Pantry |
| Shade Color | White Acrylic |
| Shade Material | Glass |
| Shape | Square |
| Size | 14 in Square |
| Special Feature | Energy efficiency, long lifespan, versatile installation options |
| Special Features | Energy efficiency, long lifespan, versatile installation options |
| Specific Uses For Product | Indoor, multiple room types (Pantry, Hallway, Kitchen, Bedroom, Basement, Garage, Home Office, Bathroom) |
| Specification Met | Damp Location, Energy Star, cUL |
| Style | 50K Hours |
| Switch Type | Push Button / Toggle |
| Theme | LED Lighting |
| UPC | 785577696213 753573687467 |
| Unit Count | 1.0 Count |
| Voltage | 120 Volts |
| Warranty Description | All products purchased have a 30-day replacement parts policy to ensure a fully working item. All products are covered under a 1-year warranty when purchased on amazon. The warranty period begins on the day the product is originally shipped. The warranty covers all of the items and conditions identified in the original manufacturers warranty. Some of the items specifically not covered by the warra… |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wattage | 24 watts |

## Product Details

- **Brand:** Lithonia Lighting
- **Color:** 4000K
- **Light fixture form:** Ceiling
- **Material:** Acrylic
- **Style:** 50K Hours

## Images

![FMLSL 20840 M4 Square 14-Inch LED Flush Mount Light, 4000K, 1100 Lumens, 16 Watts, White (FMLSL 14 20840 M4) - Image 1](https://m.media-amazon.com/images/I/61QaSgPKXEL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love this light
*by S***W on August 2, 2017*

I put a home office in my basement and needed some new light. Most of my work in on a computer, so I'm rather particular about lighting and glare. I had never used a LED light, so I wasn't sure what to expect. To my delight, this light worked great for me. I got the 4000K, 67 lum, 14x14" model. For my taste, it puts out almost exactly what I want. I combined with a dimmer ( Leviton 6674-P0W SureSlide Universal 150-Watt LED and CFL/600-Watt Incandescent Dimmer, White, 1 Pack ). At night, I can dim the light a bit to get just enough light to not trip over something. The light produced is a soft white and there's no glare. For some people, just one of these, for a large enough space, probably wouldn't be enough. I purchased two, although when I got the first one up, decided it was enough for what I like. For a smaller room (I'm lighting up around 17x15'), it would likely be enough. If I were really wanting to light up a room wall to wall, one of the brighter units would be better I suspect. Installation was a dream. They put on their thinking caps when designing, so it's easy to get the base up (like putting up a ceiling fan), then attach the light to the base with two simple levers. I would definitely purchase again. I actually still have my second one sitting by my desk and didn't return because I want to find somewhere to put it in the house now.

### ⭐⭐⭐⭐⭐ Very happy with this light fixture.
*by T***Z on January 15, 2023*

Very bright ceiling light like i wanted, exceeded my expectation. Replaced my fluorescent circle bulb ceiling light in my laundry room. Much brighter and light is evenly distributed 360 degrees around the room. Much better than recessed or flush mount which tend to emit light downwards like a spot light. Spent more money on this than i wanted but will save me money in long run since i will not have to buy expensive $20 replacement bulbs every year anymore. Installation can be a pain if you follow the instructions. I improvised on the install by pulling the fixture wires back through the metal base and running my existing electrical wires through the base plate before i mounted it to the ceiling. This allowed me to mount to ceiling and then make the connections, instead of attempting to make the connections while holding the fixture which is 12” square before mounting to the ceiling with the wires in the way. The fixture is LED which produces little to no heat, so making the connections inside the cover is not an issue. They do not affect the lighting either and are barely visible ( how often are you staring at the light directly anyway?) Doing it this way saved a lot of time and profanity on the install. Biggest issue was the existing ceiling mount where the screws attach the fixture to the ceiling did not match the fixture but they never do for me anyway so i didn’t expect them to. Again i improvised and had to use a washer on one side and no big deal. Excellent for laundry room, utility room, office or attic (if you have the wiring for it) or any space where you need it nice and bright so you can see. Much brighter than my previous fixture which makes it easier to do laundry and keep the room clean and neat.

### ⭐⭐⭐⭐ Bright and Sleek, but Installation Could Be Easier
*by D***V on August 10, 2025*

This Lithonia Lighting flush mount is bright and gives off great, even light. The sleek white design fits well in my hallway and looks modern. The LED quality is excellent, and it uses less energy than my old fixture. My only issue was the installation—it took a bit longer than I expected and needed two people to manage it safely. Other than that, it’s a solid, reliable light fixture that I’d recommend.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.dk/products/1558521-fmlsl-20840-m4-square-14-inch-led-flush-mount-light](https://www.desertcart.dk/products/1558521-fmlsl-20840-m4-square-14-inch-led-flush-mount-light)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-04*