---
product_id: 21640848
title: "(10 Pack) Sylvania 20890 CF42DT/E/IN/841/ECO 42-Watt 4100K 4-Pin Triple Tube Compact Fluorescent Lamp"
brand: "sylvania"
price: "₨36030"
currency: LKR
in_stock: true
reviews_count: 9
category: "Sylvania"
url: https://www.desertcart.lk/products/21640848-10-pack-sylvania-20890-cf42dt-e-in-841-eco-42
store_origin: LK
region: Sri Lanka
---

# 12,000 hours lifespan 42W energy efficient 3200 lumens bright (10 Pack) Sylvania 20890 CF42DT/E/IN/841/ECO 42-Watt 4100K 4-Pin Triple Tube Compact Fluorescent Lamp

**Brand:** sylvania
**Price:** ₨36030
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** (10 Pack) Sylvania 20890 CF42DT/E/IN/841/ECO 42-Watt 4100K 4-Pin Triple Tube Compact Fluorescent Lamp by sylvania
- **How much does it cost?** ₨36030 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/21640848-10-pack-sylvania-20890-cf42dt-e-in-841-eco-42)

## 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

- • **Energy-Smart 42W Power:** Cut your energy bills without sacrificing brightness—equivalent to a 200W incandescent bulb but with eco-friendly efficiency.
- • **Universal Compatibility:** Works seamlessly with electronic and dimming ballasts, making it the go-to choice for modern, flexible lighting setups.
- • **Brilliant 3200 Lumens Glow:** Illuminate your workspace with crisp, clear 4100K daylight white light that boosts focus and productivity.
- • **Triple-Tube Compact Design:** Fits perfectly in small fixtures and downlights, maximizing light output in minimal space.
- • **Long-Lasting 12,000 Hour Life:** Enjoy years of reliable lighting—less hassle, fewer replacements, and more time to focus on what matters.

## Overview

The Sylvania 20890 CF42DT/E/IN/841/ECO is a 42-watt triple-tube compact fluorescent lamp delivering 3200 lumens of bright, 4100K daylight white light. Designed for energy efficiency and long life with 12,000 hours runtime, it fits small fixtures with a 4-pin GX24q-4 base and supports electronic and dimming ballasts. Ideal for professionals seeking reliable, eco-friendly lighting solutions that combine performance with cost savings.

## Description

Sylvania 20890 DULUX 42W triple compact fluorescent amalgam lamp with 4-pin base, 4100K color temperature, 82 CRI, for use with electronic and dimming ballasts, ECOLOGIC. The ultra compact energy saving Sylvania 20890 CFL lamp with triple-tube design gives an ideal light source for small fixtures and down lights.

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.
Review: The price is 1/2 of what Lowe's wanted - Sylvania lamps are my choice overall, better value..

## Features

- Lumens: 3200
- Base Type: GX24q-4
- Life Hours: 12,000
- Wattage: 42 Watt
- Color Temperature: 4100K

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00PB4A8RA |
| Accepted voltage frequency | 100 to 120 Volts and 60 Hertz |
| Average Life | 12000 Hours |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #37,268 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #226 in Fluorescent Tubes |
| Brand | SYLVANIA |
| Brightness | 3200 |
| Bulb Base | GU24 |
| Bulb Shape Size | T4 |
| Color | White |
| Color Rendering Index | 82.0 |
| Color Temperature | 4100 Kelvin |
| Control Method | App |
| Customer Reviews | 4.5 4.5 out of 5 stars (122) |
| Date First Available | November 6, 2014 |
| Efficiency | 76 lumens per watt |
| Finish | White |
| Incandescent Equivalent Wattage | 200 Watts |
| Indoor/Outdoor Usage | Indoor |
| Item Package Quantity | 1 |
| Item Weight | 2.05 pounds |
| Item model number | 20890 |
| Light Color | White |
| Light Source Type | Compact Fluorescent Light (CFL) |
| Light Source Wattage | 42 Watts |
| Light Type | CFL |
| Manufacturer | Satco |
| Material | Glass |
| Model Name | 20890 |
| Number of Items | 10 |
| Part Number | S6756 |
| Power Consumption | 42 Watts |
| Power Source | Corded Electric |
| Product Dimensions | 8.3"W x 5.8"H |
| Shape | Bulb |
| Size | 10 Count (Pack of 10) |
| 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 Features | This compact fluorescent light bulb is designed for high-frequency electronic ballasts, making it suitable for almost every kind of energy supply. |
| Specific Uses For Product | Lamp |
| Specification Met | Energy Star |
| Unit Count | 10.0 Count |
| Voltage | 120 Volts |
| Warranty Description | N/a. |
| Wattage | 42 watts |
| White Brightness | 3200 Lumens |

## Product Details

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

## Images

![(10 Pack) Sylvania 20890 CF42DT/E/IN/841/ECO 42-Watt 4100K 4-Pin Triple Tube Compact Fluorescent Lamp - Image 1](https://m.media-amazon.com/images/I/5126DFQorOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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..

### ⭐⭐⭐⭐⭐ hard to find light
*by R***T on June 17, 2023*

The world is moving to LED cant find CF tube lights at Big Box store any more, As side note, I found packs on condescend light bulbs at Doller Store, Have not seen old style bulbs in long time, Need to put in covered plants to warm during a freeze LED light product no HEAT

---

## 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.lk/products/21640848-10-pack-sylvania-20890-cf42dt-e-in-841-eco-42](https://www.desertcart.lk/products/21640848-10-pack-sylvania-20890-cf42dt-e-in-841-eco-42)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-23*