---
product_id: 78927385
title: "Lightwise LWL7W40-F13T5 21\" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5"
brand: "lightingwise"
price: "283 zł"
currency: PLN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pl/products/78927385-lightwise-lwl7w40-f13t5-21-direct-replacement-led-tube-7-watt
store_origin: PL
region: Poland
---

# 50,000-hour lifespan 50% energy savings 7W ultra-efficient power Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5

**Brand:** lightingwise
**Price:** 283 zł
**Availability:** ✅ In Stock

## Summary

> 💡 Light smarter, work brighter — don’t get left in the dark!

## Quick Answers

- **What is this?** Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 by lightingwise
- **How much does it cost?** 283 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/78927385-lightwise-lwl7w40-f13t5-21-direct-replacement-led-tube-7-watt)

## Best For

- lightingwise enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last and Safer:** UL listed, shatterproof design with a robust aluminum body and milky PC cover.
- • **Effortless Installation:** Plug-and-play T5 tube fits seamlessly into your existing under-cabinet fixtures.
- • **Cut Your Energy Bills in Half:** Upgrade from 13W to 7W without any hassle—direct replacement for instant savings.
- • **Dimmable for Perfect Ambiance:** Customize your lighting mood with smooth dimming control via push button or app.
- • **Brilliant 4000K Cool White Glow:** 900 lumens of crisp, professional lighting perfect for focused workspaces.

## Overview

The Lightwise LWL7W40-F13T5 is a 21-inch LED tube designed as a direct replacement for 13W T5 fluorescent tubes, delivering 900 lumens of cool 4000K light at just 7 watts. With over 50% energy savings, a long 50,000-hour lifespan, UL safety certification, and a shatterproof, dimmable design, this set of 5 tubes offers a sleek, efficient upgrade for under-cabinet lighting in professional and home environments.

## Description

Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5

## Features

- Direct Replace 21'' T5 13W tubes from your T5 Under-Cabinet Lights to get over 50% light and energy saving
- Alum Body and Milky PC cover provide great 900 Lumen 4000K Cool lights
- Long life up to 50,000 hours and much cooler operation than regular Fluo.system
- Upgrade your Under-cabinet lights system from 13W to 7W w/o any extra job, just replace the tube directly
- UL Listed and safety shipping in brown hard paper tube.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | LightingWise |
| Light Type | Fluorescent |
| Special Feature | Dimmable, shatterproof |
| Wattage | 7 watts |
| Bulb Base | Wedge |
| Light Color | Brown, White |
| Voltage | 120 Volts |
| Unit Count | 1 count |
| Color Temperature | 4000 Kelvin |
| Number of Items | 5 |
| Brightness | 900 Lumen |
| Shape | Tubular(T) |
| Material | paper |
| Connectivity Technology | Normal bulb |
| Indoor/Outdoor Usage | Indoor |
| Controller Type | Push Button |
| Theme | Lighting Technology |
| Included Components | 5 LED light tubes |
| Power Source | AC adapter |
| Power Consumption | 7 Watts |
| Item Package Quantity | 5 |
| Light Source Type | LED |
| Specification Met | UL |
| Light Source Wattage | 7 Watts |
| Product Dimensions | 20"W x 0.63"H |
| Accepted voltage frequency | 100 to 120 Volts and 60 Hertz |
| Control Method | App |
| Average Life | 50000 Hours |
| White Brightness | 900 Lumens |
| Efficiency | Higher |
| Manufacturer | DuroPower Lighting |
| UPC | 647356274152 |
| Part Number | DL |
| Item Weight | 1.4 pounds |
| Item model number | DL |
| Is Discontinued By Manufacturer | No |
| Color | White |
| Special Features | Dimmable, shatterproof |
| Batteries Included? | No |
| Batteries Required? | No |
| Wattage | 7 Watts |

## Product Details

- **Brand:** LightingWise
- **Light Type:** Fluorescent
- **Special Feature:** Dimmable, shatterproof
- **Wattage:** 7 watts
- **Bulb Base:** Wedge

## Images

![Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 - Image 1](https://m.media-amazon.com/images/I/61U-SjFGMZL.jpg)
![Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 - Image 2](https://m.media-amazon.com/images/I/61tmq728HsL.jpg)
![Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 - Image 3](https://m.media-amazon.com/images/I/515rqoiG-1L.jpg)
![Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 - Image 4](https://m.media-amazon.com/images/I/51chzpC7SwL.jpg)
![Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5 - Image 5](https://m.media-amazon.com/images/I/31eXDOm-gaL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ LED T8 21" replacement- brighter light, instant on, energy savings
*by F***L on August 21, 2023*

These 21" T8 LED lamps are quite good. They are plug-and-play with existing fixtures and ballasts. They provide Instant-on, more light and a crisper higher quality light than fluorescent, all while saving you money and likely lasting much longer. Since these draw a lower wattage the ballasts run much cooler and thus last much longer than they would normally. After installing 1000's of LED plug-and-play retrofit tubes, I have never had a ballast die that was not already dead.These are sold as "white", 4000K. The color on these is an interesting warm color, while still providing a bright white look, though I would not call it "white", but more of a vibrant warm white. It is an interesting color combination that I have not come across before. It is for sure not a typical 4000. I see multiple hues mixed in ranging from 6000k down to 1500. I don't have my color meter here, but it would be interesting to see what it shows, but it would likely be a broad spectrum. Overall I like the color a lot. The only downside is if you have any other lights in the same area, you will want to change them out to match this one and it may be difficult to find in other sizes. Now the other shorter under cabinet LED that I replaced no longer looks as good as it use to.

### ⭐⭐⭐⭐⭐ Good replacement tubes
*by S***T on May 13, 2023*

I installed lighting in a wide closet 15 years ago which used the fluorescent version (CFL) of these tubes (four across the top). Those CFL tubes had to be replaced every few years and are now being phased out, so they are hard to find and quite expensive...but even harder to dispose of now, since few recycling drop-offs (if any...) take CFL anymore. The prices of LED tubes have dropped dramatically, and cost about the same as the CFL tubes now. The brightness of these tubes is just as good as the CFL tubes. Color temp is muffled by the plastic covers of the troffers, so we don't see a color temp difference (it's a closet, not like we really care anyway). The critical component is my wife: she's happy with them, so I'm happy with them.

### ⭐⭐⭐⭐ They're dimmable!
*by J***N on January 22, 2023*

Replaced my aging fluorescent bulbs with these. I have them connected via a Kasa dimmable smart switch. So far, so good. I hope they last as long as the bulbs they're replacing! The picture shows them in the dimmed position. They get a lot brighter!

## Frequently Bought Together

- Lightwise LWL7W40-F13T5 21" Direct Replacement Led Tube, 7-Watt, White, 4000K, Set of 5
- LightWise LWL4W40-F8T5 12" Direct Replacement Led Tube, 4-Watt, White, 4000K, Set of 3

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-25*