---
product_id: 27682736
title: "F8T5 T5 Fluorescent Bulb 12 Inch Under Cabinet, 8W 4100K, 6 Pack"
brand: "circle"
price: "€ 45.71"
currency: EUR
in_stock: true
reviews_count: 13
category: "Circle"
url: https://www.desertcart.hr/products/27682736-f8t5-t5-fluorescent-bulb-12-inch-under-cabinet-8w-4100k
store_origin: HR
region: Croatia
---

# 20,000 hours long-life runtime 420 lumens crisp cool white Plug & play G5 base, no rewiring F8T5 T5 Fluorescent Bulb 12 Inch Under Cabinet, 8W 4100K, 6 Pack

**Brand:** circle
**Price:** € 45.71
**Availability:** ✅ In Stock

## Summary

> 💡 Brighten your space, not your energy bill!

## Quick Answers

- **What is this?** F8T5 T5 Fluorescent Bulb 12 Inch Under Cabinet, 8W 4100K, 6 Pack by circle
- **How much does it cost?** € 45.71 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/27682736-f8t5-t5-fluorescent-bulb-12-inch-under-cabinet-8w-4100k)

## 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

- • **Multipack Value:** Six bulbs per pack, protected packaging—perfect for outfitting multiple spaces or future-proofing your lighting needs.
- • **Trusted Quality:** Top-rated with 4.6 stars from nearly 6,000 reviews, delivering reliable, flicker-free illumination every time.
- • **True Color Precision:** CRI 85 ensures vibrant, accurate lighting for kitchens and workspaces where detail matters.
- • **Energy Smart & Durable:** Only 8 watts power consumption with a lifespan up to 20,000 hours means fewer replacements and lower bills.
- • **Effortless Installation:** Standard 12-inch T5 size with G5 mini bi-pin base fits existing fixtures—twist and go, no electrician needed.

## Overview

The Circle F8T5 Fluorescent Light Bulbs deliver 420 lumens of crisp, cool white light at 4100K with excellent color accuracy (CRI 85). Designed as a direct replacement for standard 12-inch T5 under-cabinet fixtures, these 8-watt tubes install easily with a G5 base and work with existing fluorescent ballasts—no rewiring required. Rated for up to 20,000 hours, this 6-pack offers long-lasting, energy-efficient lighting ideal for kitchens, workshops, RVs, and display areas, backed by thousands of positive reviews and a 1-year warranty.

## Description

Circle F8T5 Fluorescent Light Bulbs - 12 inches Under Cabinet Bulb - Cool White 4100k 8 Watt Tube Bulb - Pack of 6 - desertcart.com

Review: Great product and more than you would get from the big box store at a lower cost. - I got these as replacements for kitchen counter lights. They are great replacements and you get a lot more items for your money than you will at the big box stores. They are durable and not cheaply made. They are bright and very easy to install.
Review: Perfect replacement - Arrived quickly, perfect replacement, turned on with no issues.

## Features

- CRISP COOL WHITE, TRUE COLOR — 420 lumens of clean, flicker-free light with CRI 85 color accuracy for kitchens, workshops, RVs and display areas where seeing true color matters.
- EXACT 12" T5 UNDER-CABINET FIT — F8T5 with a G5 mini bi-pin base drops into standard 12-inch T5 under-cabinet and over-counter fixtures. Insert, twist, done.
- STANDARD FLUORESCENT — USES YOUR EXISTING BALLAST — Genuine T5 tube, not an LED retrofit. Works in fixtures that already run fluorescent bulbs. No rewiring, no electrician.
- RATED UP TO 20,000 HOURS — Long-life output for dependable lighting and fewer replacements across kitchen cabinets, RVs, marine fixtures and utility areas.
- 6-PACK VALUE, PACKED TO ARRIVE INTACT — Cost-effective multipack from Circle in protective packaging built to survive shipping. Trusted across thousands of buyer ratings.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01E9VK7V2 |
| Accepted Voltage Frequency | 100 to 120 Volts and 50 Hertz |
| Additional Features | Energy Efficient |
| Best Sellers Rank | #1,729 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Fluorescent Tubes |
| Brand | Circle |
| Brand Name | Circle |
| Bulb Base | G5 |
| Bulb Diameter | 0.7 inches |
| Bulb Shape Size | T5 |
| Color | 4100 |
| Color Rendering Index | 85 |
| Color Temperature | 4100 Kelvin |
| Connectivity Technology | Normal bulb |
| Control Method | App |
| Controller Type | Push Button |
| Customer Reviews | 4.5 out of 5 stars 5,992 Reviews |
| Incandescent Equivalent Wattage | 8 watts |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 12"W x 0.7"H |
| Item Weight | 7.2 ounces |
| Light Color | White |
| Light Output Maximum | 420 lumens |
| Light Source Operating Life | 20000 hours |
| Light Source Type | Fluorescent |
| Light Source Wattage | 8 watts |
| Light Type | Fluorescent |
| Manufacturer | Circle |
| Manufacturer Part Number | FBA_H&PC-53164 |
| Manufacturer Warranty Description | This product is backed by a 1-year limited warranty covering manufacturer defects under normal installation and operating conditions. |
| Material Type | Glass |
| Model Name | F8T5 and F32T8/SP830 |
| Model Number | F8T5 and F32T8/SP830 |
| Number of Items | 6 |
| Package Quantity | 1 |
| Power Consumption | 8 watts |
| Shape | Tubular(T) |
| Special Feature | Energy Efficient |
| Specific Uses For Product | Decoration |
| UPC | 030465196192 |
| Unit Count | 6 Count |
| Voltage | 120 volts |
| Wattage | 8 watts |
| White Brightness | 420 lumens |

## Product Details

- **Brand:** Circle
- **Bulb Base:** G5
- **Incandescent Equivalent Wattage:** 8 Watts
- **Light Type:** Fluorescent
- **Wattage:** 8 watts

## Images

![F8T5 T5 Fluorescent Bulb 12 Inch Under Cabinet, 8W 4100K, 6 Pack - Image 1](https://m.media-amazon.com/images/I/61T7SGQDcoL.jpg)

## Available Options

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

## Questions & Answers

**Q: What Voltage are these?**
A: These plug into standard 120 volt fixtures.

**Q: Can these bulbs be used with dc current fixtures in my rv**
A: As long as it is the standard 12 Volt DC fixture them it will replace the current bulbs.

**Q: My rv has bulbs with the t5, 8w, cw, 4000k will those here marked 4100k work instead?**
A: They should the 4000k vs 4100k is the color or whiteness of the light output.

**Q: What ballast should I order for these lights?**
A: No ballast required.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product and more than you would get from the big box store at a lower cost.
*by K***I on July 5, 2026*

I got these as replacements for kitchen counter lights. They are great replacements and you get a lot more items for your money than you will at the big box stores. They are durable and not cheaply made. They are bright and very easy to install.

### ⭐⭐⭐⭐⭐ Perfect replacement
*by K***N on July 26, 2026*

Arrived quickly, perfect replacement, turned on with no issues.

### ⭐⭐⭐⭐⭐ Great buy
*by A***L on July 9, 2026*

Love the cool lights.

## Frequently Bought Together

- F8T5 Flourescent Light Bulbs - 12 inches Under Cabinet Bulb - Cool White 4100k 8 Watt Tube Bulb - Pack of 6
- (6 Pack) F13T5/CW - T5 Fluorescent 4100K Cool White - 21" Linear - 13 Watt T5 - Under The Counter Light Bulbs

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**Shop now:** [https://www.desertcart.hr/products/27682736-f8t5-t5-fluorescent-bulb-12-inch-under-cabinet-8w-4100k](https://www.desertcart.hr/products/27682736-f8t5-t5-fluorescent-bulb-12-inch-under-cabinet-8w-4100k)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-09-02*