---
product_id: 21640848
title: "LEDVANCE Dulux T/E/in CFL Compact Fluorescent Light Bulb 4 Pin 42W, 10 Pack"
brand: "sylvania"
price: "€ 66.50"
currency: EUR
in_stock: true
reviews_count: 9
category: "Sylvania"
url: https://www.desertcart.ie/products/21640848-ledvance-dulux-t-e-in-cfl-compact-fluorescent-light-bulb
store_origin: IE
region: Ireland
---

# 12,000 hours lifespan 42W efficient power Stable 90% lumen output 40°F-140°F LEDVANCE Dulux T/E/in CFL Compact Fluorescent Light Bulb 4 Pin 42W, 10 Pack

**Brand:** sylvania
**Price:** € 66.50
**Availability:** ✅ In Stock

## Summary

> 💼 Light smarter, work brighter—because your space deserves the best.

## Quick Answers

- **What is this?** LEDVANCE Dulux T/E/in CFL Compact Fluorescent Light Bulb 4 Pin 42W, 10 Pack by sylvania
- **How much does it cost?** € 66.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/21640848-ledvance-dulux-t-e-in-cfl-compact-fluorescent-light-bulb)

## Best For

- sylvania enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Glow:** 12,000-hour lifespan means fewer replacements and less hassle—perfect for busy professionals who value uptime.
- • **True-to-Life Color:** 82 CRI with rare earth tri-phosphor delivers crisp, natural white light (4100K) that enhances any workspace or living area.
- • **Versatile & Dimmable:** Designed for electronic ballasts and dimmable fixtures—ideal for downlights, sconces, offices, and healthcare settings.
- • **Power-Packed Efficiency:** Uses just 42W to deliver a bright 3200 lumens—cut your energy bills without sacrificing light quality.
- • **Consistent Brightness, Always:** Amalgam tech ensures 90% lumen output across extreme temps (40°F to 140°F) for reliable performance year-round.

## Overview

The LEDVANCE Dulux T/E/in CFL 42W 4-pin compact fluorescent bulb offers energy-efficient, dimmable lighting with a long 12,000-hour lifespan. Featuring amalgam technology for consistent brightness across a wide temperature range and a high 82 CRI for natural color rendering, this 10-pack is perfect for professional and commercial environments seeking reliable, cost-effective illumination.

## Description

SYLVANIA DULUX compact fluorescent lamps are ideal for use in a wide range of commercial and residential applications. They are designed to be operated on energy efficient electronic and dimming ballasts.

Review: 42 watts - Great
Review: 4 years average - I get on average 4 years out of these. I write the date on them when they are installed. I do this with all the bulbs I install. If one burns out quickly I know that I might have a Ballast problem. I replace around 300 bulbs a year, 13 different types in 7 locations. So writing the date really helps.

## Features

- EFFICIENT LIGHT YOU CAN COUNT ON: This 42W 4-pin triple-tube compact fluorescent bulb is dimmable and designed for electronic ballast fixtures. GX24q-4 plug-in base and amalgam technology for consistent output across a wide temperature range.
- CRISP, HIGH-QUALITY 82 CRI LIGHT: Rare earth tri-phosphor delivers accurate, natural-looking color in a cool white 4100K. Amalgam technology maintains 90% lumen output from 40°F to 140°F - consistent performance across a wide temperature range.
- 12,000 HOUR LIFE - RELIABLE PERFORMANCE: Lasts significantly longer than incandescent alternatives, with no-flicker starting and fast run-up to full brightness. Triple-tube structure supports single-lamp fixture designs for easier maintenance.
- USES A FRACTION OF THE ENERGY OF INCANDESCENT: At just 42W, uses about a quarter of the energy of a comparable incandescent. Lower system wattage means meaningful electricity cost reductions over the lamp's rated life.
- BUILT FOR DOWNLIGHTS, SCONCES & SURFACE-MOUNTED LUMINAIRES: Ideal for recessed downlights, surface mounted luminaires, offices, healthcare examination rooms or classrooms. A high-output fluorescent light delivering reliable, dimmable performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PB4A8RA |
| Accepted Voltage Frequency | 100 to 120 Volts and 60 Hertz |
| Additional Features | This compact fluorescent light bulb is designed for high-frequency electronic ballasts, making it suitable for almost every kind of energy supply. |
| Best Sellers Rank | #25,977 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #105 in Fluorescent Tubes |
| Brand | SYLVANIA |
| Brand Name | SYLVANIA |
| Bulb Base | GU24 |
| Bulb Shape Size | T4 |
| Color | White |
| Color Rendering Index | 82 |
| Color Temperature | 4100 Kelvin |
| Connectivity Technology | Normal bulb |
| Control Method | Push Button |
| Controller Type | Push Button |
| Customer Reviews | 4.4 out of 5 stars 129 Reviews |
| Efficiency | 76 lumens per watt |
| Incandescent Equivalent Wattage | 42 watts |
| Included Components | 10 Compact Fluorescent Lamps |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions W x H | 8.3"W x 5.8"H |
| Item Type Name | 10 Pack) Sylvania 20890 CF42DT/E/IN/841/ECO 42-Watt 4100K 4-Pin Triple Tube Compact Fluorescent Lamp |
| Light Color | White |
| Light Output Maximum | 3200 lumens |
| Light Source Operating Life | 12000 hours |
| Light Source Type | Compact Fluorescent Light (CFL) |
| Light Source Wattage | 42 watts |
| Light Type | CFL |
| Manufacturer | Satco |
| Manufacturer Part Number | S6756 |
| Manufacturer Warranty Description | N/a. |
| Material Type | Glass |
| Model Name | 20890 |
| Model Number | 20890 |
| Number of Items | 10 |
| Package Quantity | 1 |
| Power Consumption | 42 watts |
| Power Source | Corded Electric |
| Shape | Bulb |
| Special Feature | This compact fluorescent light bulb is designed for high-frequency electronic ballasts, making it suitable for almost every kind of energy supply. Special Feature This compact fluorescent light bulb is designed for high-frequency electronic ballasts, making it suitable for almost every kind of energy supply. See more |
| Specific Uses For Product | Lamp |
| Specification Met | Energy Star |
| Style Name | Triple Tube 4-PIN |
| Unit Count | 10 Count |
| Voltage | 120 volts |
| Wattage | 42 watts |
| White Brightness | 3200 lumens |

## Product Details

- **Brand:** SYLVANIA
- **Bulb Shape Size:** T4
- **Light Type:** CFL
- **Wattage:** 42 watts

## Images

![LEDVANCE Dulux T/E/in CFL Compact Fluorescent Light Bulb 4 Pin 42W, 10 Pack - Image 1](https://m.media-amazon.com/images/I/5126DFQorOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 42 watts
*by C***N on February 21, 2026*

Great

### ⭐⭐⭐⭐⭐ 4 years average
*by F***3 on October 26, 2025*

I get on average 4 years out of these. I write the date on them when they are installed. I do this with all the bulbs I install. If one burns out quickly I know that I might have a Ballast problem. I replace around 300 bulbs a year, 13 different types in 7 locations. So writing the date really helps.

### ⭐⭐⭐⭐⭐ The price is 1/2 of what Lowe's wanted
*by R***S on December 9, 2023*

Sylvania lamps are my choice overall, better value..

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-08-01*