---
product_id: 13255754
title: "Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10"
brand: "sylvania"
price: "$212.10"
currency: USD
in_stock: true
reviews_count: 9
category: "Sylvania"
url: https://www.desertcart.us/products/13255754-sylvania-20585-ft40dl-835-rs-eco-dulux-l-40w-ecologic
store_origin: US
region: United States of America
---

# 40W energy-saving power 3150 Lumens brightness 20,000 hours lifespan Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10

**Brand:** sylvania
**Price:** $212.10
**Availability:** ✅ In Stock

## Summary

> 💼 Light up your workspace with smart, sustainable brilliance!

## Quick Answers

- **What is this?** Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10 by sylvania
- **How much does it cost?** $212.10 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/13255754-sylvania-20585-ft40dl-835-rs-eco-dulux-l-40w-ecologic)

## 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

- • **Bulk Smart Buy:** Pack of 10 bulbs—ideal for outfitting offices, studios, or your home with consistent quality lighting.
- • **Long-Lasting Glow:** Up to 20,000 hours of reliable light—replace less, do more.
- • **Flicker-Free Focus:** High-frequency ballast ensures steady, flicker-free illumination for professional spaces.
- • **Brilliant Efficiency:** Delivers 3150 lumens with just 40 watts—shine brighter while saving energy.
- • **Perfect 3500K Warmth:** Balanced 3500K color temperature for inviting, natural white light that enhances productivity.

## Overview

The Sylvania 20585 FT40DL/835/RS/ECO is a 40W compact fluorescent lamp featuring a 2G11 base and delivering 3150 lumens at a warm 3500K color temperature. Designed for indoor use, it offers up to 20,000 hours of flicker-free, energy-efficient lighting—using 40-70% less power than incandescent bulbs—making it a cost-effective, professional-grade solution for offices, studios, and commercial environments.

## Description

You can find Sunlite’s FT fluorescent lamps in kitchens, basements, garages, cafeterias, as well as corporate offices thanks to its significant cost savings when compared to an equivalent incandescent lamp. In addition to general purpose lighting, Sunlite’s fluorescent lights can be utilized for all manner of indoor video production since they emit a cooler light source than what you’ll get from a traditional halogen lamp while also using a high frequency ballast to prevent visible flicker furthermore producing a high color render index to imitate a daylight like color temperatures.

Review: good price overall - good price overall... my second box of them arrived this week intact so packing hasn't been an issue... Sylvania bulbs don't last worth a fleck but the only other brand is some Chinese off brand that sucks worse.. I just bought my second box of 10 so I must be satisfied
Review: Five Stars - They worked perfectly

## Features

- Fluorescent bulbs are energy saving bulbs and last up to 10 times longer than incandescent bulbs
- Fluorescent bulbs help you save money using 40 - 70% less energy than incandescent bulbs
- Fluorescent bulbs are 5-8 times more brighter (more output lumens /watt) than incandescent bulbs
- Sylvania Single Tube 4-PIN fluorescent bulb, 40W,
- Base: 2G11, Color Temp: 3500K, Rated Life (hours): 20000

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CAXWW1U |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #41,149 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #58 in Compact Fluorescent Bulbs |
| Brand | SYLVANIA |
| Brightness | 3150 Lumen |
| Bulb Base | Prong |
| Bulb Shape Size | T |
| Color | White |
| Color Rendering Index | 80 |
| Color Temperature | 3500 Kelvin |
| Control Method | App |
| Customer Reviews | 4.2 4.2 out of 5 stars (101) |
| Date First Available | April 10, 2013 |
| Finish | White |
| Incandescent Equivalent Wattage | 40 Watts |
| Included Components | Original OEM Bulb |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 4.2 pounds |
| Item model number | 20585 |
| Light Color | White |
| Light Output Maximum | 3150 Lumens |
| Light Source Type | Fluorescent Bulbs |
| Light Source Wattage | 40 Watts |
| Light Type | CFL |
| Manufacturer | Satco |
| Material | Glass |
| Model Name | 20585 |
| Number of Items | 10 |
| Part Number | S6767 |
| Power Consumption | 40 Watts |
| Product Dimensions | 1.7"W x 22.4"H |
| Shape | Tubular(T) |
| Size | 10 Count (Pack of 1) |
| Special Feature | Base 2G11, Voltage, Wattage 40 |
| Special Features | Base 2G11, Voltage, Wattage 40 |
| Specific Uses For Product | Lamp |
| UPC | 046135205859 |
| Unit Count | 10.0 Count |
| Voltage | 120 Volts |
| Warranty Description | N/a. |
| Wattage | 40 watts |
| White Brightness | 3150 Lumens |

## Product Details

- **Brand:** SYLVANIA
- **Bulb Shape Size:** T
- **Light Type:** CFL
- **Special Feature:** Base 2G11, Voltage, Wattage 40
- **Wattage:** 40 watts

## Images

![Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10 - Image 1](https://m.media-amazon.com/images/I/31nxAA+0P6L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ good price overall
*by P***S on January 12, 2018*

good price overall... my second box of them arrived this week intact so packing hasn't been an issue... Sylvania bulbs don't last worth a fleck but the only other brand is some Chinese off brand that sucks worse.. I just bought my second box of 10 so I must be satisfied

### ⭐⭐⭐⭐⭐ Five Stars
*by S***Y on March 3, 2017*

They worked perfectly

### ⭐⭐⭐⭐ good light
*by M***I on May 11, 2025*

these are getting hard to get, and there are more than one type of ballast for the lights,some can not be replace,you can also order these in led bulbs ,but you need to remove ballast first..paul

## Frequently Bought Together

- Sylvania 20585 FT40DL/835/RS/ECO Dulux L 40W Ecologic Compact Flourescent CFL Light Lamp, 40 Watt, 4 Pin, 2G11 Base, 3500K, Pack of 10, 10 Count (Pack of 1), White
- Advance Centium ICN-2TTP-40-SC - (2) Lamp Fluorescent Ballast - 40 Watt CFL - 120/277 Volt - Instant Start - 0.88 Ballast Factor
- Leviton 23452-H Snap-In Lamp Support Clip For Horizontal Mount 2G11 Base Twin Tube Fluorescent Lampholder

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-07*