---
product_id: 28169853
title: "(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21\" Linear - 13 Watt T5 - Under The Counter Light Bulbs"
brand: "circle"
price: "€ 79.42"
currency: EUR
in_stock: true
reviews_count: 8
category: "Circle"
url: https://www.desertcart.nl/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21
store_origin: NL
region: Netherlands
---

# 20,000 hours per bulb lifespan 13 watts energy efficient 1300 lumens brightness (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs

**Brand:** circle
**Price:** € 79.42
**Availability:** ✅ In Stock

## Summary

> 💡 Light up your life with brilliance and efficiency—don’t let your space stay in the dark!

## Quick Answers

- **What is this?** (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs by circle
- **How much does it cost?** € 79.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21)

## Best For

- circle enthusiasts

## Why This Product

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

## Key Features

- • **Versatile & Stylish:** Ideal for kitchens, RVs, patios, and marine use—upgrade any under-cabinet area with sleek, tubular T5 design.
- • **Effortless Installation:** Plug-and-twist design with G5 base makes upgrading your under-counter lighting a breeze—no electrician needed.
- • **Long-Lasting Value Pack:** 6 bulbs provide a combined 120,000 hours of reliable, flicker-free illumination—light up your space for years.
- • **Brilliant Cool White Glow:** 4100K color temperature delivers crisp, professional lighting perfect for kitchens and workspaces.
- • **Energy Smart & Eco-Friendly:** Consumes just 13 watts while producing 1300 lumens, saving on electricity without sacrificing brightness.

## Overview

The Circle F13T5/CW 6-pack fluorescent bulbs offer 4100K cool white light at 1300 lumens with just 13 watts of power. Each 21-inch tubular bulb lasts up to 20,000 hours, making this pack a long-term, energy-efficient solution for under-counter and specialty lighting needs.

## Description

Circle (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - desertcart.com

Review: Decent tubes at. Decent price - See review title
Review: New lamps for our counters - The fluorescent bulbs arrived in a timely manner. The first bulb I installed is working well, the color and brightness match our current under counter lamps.

## Features

- Bulb Specifications: These fluorescent bulbs, model number F13T5/CW , come in a 6 pack. It uses 13 watts to a nice spread of light. It is a cool white color, 4100K. The bulbs are tubular and are 21" long.
- Easy & Quick Install: These linear bulbs come with 2 pins at each end so that you can just pop it into the socket and twist it into place. Easy to install and immediately lights up your home so that it looks fantastic.
- Long Lifetime Value Pack: Each bulb gives you an average of 20,000 hours of light. With this 6 pack, you get a total of 120,000 hours of light! With our brand, you enjoy a lot of comfortable light.
- Multi-Purpose Applications: The under-counter bulbs are most often used in the kitchen and in an RV. Also used on the patio, in many marine applications and for the lighting fixture under any cabinetry.
- Reliable: We use secure packaging materials so you get the bulbs you ordered, not broken glass.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01EDMZNI4 |
| Accepted Voltage Frequency | 100 to 120 Volts and 60 Hertz |
| Additional Features | Instant On, Under cabinet lighting |
| Best Sellers Rank | #1,712 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Fluorescent Tubes |
| Brand | Circle |
| Brand Name | Circle |
| Brightness | 1300 Lumen |
| Bulb Base | G5 |
| Bulb Shape Size | T5 1/2 |
| Color Rendering Index | 100 |
| Color Temperature | 4100 Kelvin |
| Connectivity Technology | Normal bulb |
| Control Method | App |
| Controller Type | Push Button |
| Customer Reviews | 4.5 out of 5 stars 2,481 Reviews |
| Efficiency | 100 lm/W |
| Incandescent Equivalent Wattage | 13 Watts |
| Included Components | 6 Pack Long life T5 Fluorescent Tubes, Perfect under the counter kitchen light bulbs, T5 fluorescent bulb |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 2.5"W x 21"H |
| Item Weight | 12.8 Ounces |
| Light Color | Cool White |
| Light Source Operating Life | 120000 Hours |
| Light Source Type | Fluorescent |
| Light Source Wattage | 13 Watts |
| Light Type | Fluorescent |
| Manufacturer | Circle® |
| Manufacturer Warranty Description | 1 year warranty. Please contact us if you have any issues. We offer 100% customer satisfaction on all our products! |
| Material Type | Glass |
| Model Number | F13T5/CW |
| Number of Items | 1 |
| Package Quantity | 6 |
| Power Consumption | 13 Watts |
| Power Source | Corded Electric |
| Shape | Tubular(T) |
| Special Feature | Instant On, Under cabinet lighting |
| UPC | 030465195553 |
| Unit Count | 6.0 Count |
| Voltage | 120 Volts |
| Wattage | 13 watts |
| White Brightness | 1300 Lumens |

## Product Details

- **Brand:** Circle
- **Bulb Shape Size:** T5 1/2
- **Light Type:** Fluorescent
- **Special Feature:** Instant On, Under cabinet lighting
- **Wattage:** 13 watts

## Images

![(6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs - Image 1](https://m.media-amazon.com/images/I/61T7SGQDcoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Decent tubes at. Decent price
*by A***R on February 23, 2026*

See review title

### ⭐⭐⭐⭐⭐ New lamps for our counters
*by N***S on February 25, 2026*

The fluorescent bulbs arrived in a timely manner. The first bulb I installed is working well, the color and brightness match our current under counter lamps.

### ⭐⭐⭐⭐⭐ Easy peasy light fix.
*by D***S on January 15, 2026*

Nice to have the under counter lights back and they work perfectly.

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**Shop now:** [https://www.desertcart.nl/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21](https://www.desertcart.nl/products/28169853-6-pack-f13t5-cw-t5-fluorescent-4100k-cool-white-21)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-15*