Sylvania 20576 FT40DL/850/RS/ECO

Product Overview

SYLVANIA 20576 FT40DL/850/RS/ECO – 40W DULUX L Twin-Tube CFL | 3,150 lm | 5000K | 82 CRI | 2G11 4-Pin | 20,000 Hours

The SYLVANIA 20576 FT40DL/850/RS/ECO is a 40W DULUX® L ECOLOGIC® long twin-tube compact fluorescent lamp with a 2G11 4-pin base, delivering 3,150 lumens at 5000K daylight with 82 CRI. Designed for high-lumen commercial fixtures, this coated T17.5 lamp can be used with compatible magnetic, electronic, or dimming ballast systems and supports rapid-start and instant-start operation when paired with properly matched control gear. Its ECOLOGIC® design contains 3.0 mg of mercury and meets Federal TCLP criteria for classification as non-hazardous waste. Please verify ballast type, 2G11 socket configuration, lamp dimensions, and starting method before ordering.

Wattage

40W

DULUX L CFL

Lumens

3,150 lm

High Output

Color Temp

5000K

Daylight / 850

Base

2G11

4-Pin

Rated Life

20,000 hrs

Technical Specifications

Brand	SYLVANIA / LEDVANCE
Family	DULUX® L ECOLOGIC®
NAED / Product Number	20576
Ordering Abbreviation	FT40DL/850/RS/ECO
Packaging Description	FT40DL850RSECO 10/CS 1/SKU
Industry Standard	FT40W/2G11/RS/850
Lamp Type	Long twin-tube compact fluorescent lamp
Nominal Wattage	40W
Base Type	2G11 4-pin
Bulb Shape	T17.5
Lamp Finish	Coated
Luminous Flux	3,150 lm
Color Temperature	5000K daylight
Light Color Code	850
Color Rendering Index	82
Average Rated Life	20,000 hours
Starting Method	Rapid start and instant start with compatible ballast systems
Ballast Compatibility	Compatible magnetic, electronic, and dimming ballasts designed for this lamp type
Overall Length	568.96 mm
Diameter	1.6 inches
Mercury Content	3.0 mg
SKU UPC	0046135205767
Sales Unit	1 lamp
Case Quantity	10 lamps
Case Dimensions	24.291 in x 5.512 in x 4.213 in
Case Weight	3.946 lb

Key Features & Benefits

High-lumen 40W twin-tube design provides 3,150 lumens from a compact single-ended lamp.
5000K daylight color supports bright, visually crisp commercial and task-lighting environments.
82 CRI helps maintain accurate and consistent color appearance.
2G11 4-pin base supports compatible magnetic, electronic, and dimming ballast systems.
ECOLOGIC® design meets Federal TCLP criteria for classification as non-hazardous waste.
20,000-hour rated life helps reduce relamping frequency in commercial installations.
Static color temperature supports consistent appearance across matched fixtures.

Product Overview

The SYLVANIA 20576 DULUX® L ECOLOGIC® is a high-output, long twin-tube compact fluorescent lamp designed for commercial fixtures that require substantial light output from a narrow, single-ended lamp profile. Its 40W power rating and 3,150-lumen output make it suitable for indirect fixtures, recessed luminaires, surface-mounted fixtures, wall-washing systems, signage, and task lighting.

The lamp produces 5000K daylight illumination with an 82 CRI, providing a bright appearance suited to workspaces, institutional environments, retail applications, signs, and architectural lighting. Its 2G11 4-pin base must be installed in a compatible socket and operated with ballast equipment correctly matched to the FT40DL/RS lamp family.

SYLVANIA identifies this product for use on compatible magnetic, electronic, and dimming ballasts. Because DULUX L lamps may support different operating methods depending on wattage and ballast design, the fixture ballast model and starting method should always be verified before replacement.

Compatible Applications

Indirect commercial lighting fixtures
Landscape lighting fixtures designed for 2G11 CFL lamps
Wall sconces and wall-washing luminaires
Recessed commercial fixtures
Surface-mounted fixtures
Illuminated signage
Commercial task lighting
High-lumen single-ended compact fluorescent fixtures

Before Ordering – Verify

Product number: Confirm SYLVANIA NAED 20576 and ordering abbreviation FT40DL/850/RS/ECO.
Base: Confirm the fixture uses a 2G11 4-pin socket.
Wattage: Verify the fixture and ballast are designed for a 40W DULUX L lamp.
Ballast compatibility: Confirm the existing magnetic, electronic, or dimming ballast specifically lists compatibility with FT40DL/RS or equivalent 40W 2G11 lamps.
Starting method: This product is listed for rapid-start and instant-start operation, but lamp life can vary depending on the ballast and operating method.
Do not substitute by shape alone: FT18DL and FT18DL/RS lamps are not electrically interchangeable, and other DULUX L wattages may operate differently.
Dimensions: Confirm the fixture can accommodate the 568.96 mm overall length and 1.6-inch diameter.
Color temperature: This lamp is 5000K / 850 daylight. Confirm the required CCT before ordering.
Packaging: Sold as one lamp per SKU, with 10 lamps per case.

Safety and Handling Guidelines

Disconnect electrical power before inspecting, installing, or removing the lamp.
Install only in a compatible 2G11 socket with ballast equipment designed for this lamp wattage and starting method.
Do not force the lamp into the socket; align all four pins correctly before insertion.
Handle the lamp by its base and avoid applying pressure to the glass tubes.
Replace lamps that are cracked, damaged, or improperly seated.
Lamp life may vary depending on the ballast, starting method, operating cycle, and fixture conditions.
Follow the fixture and ballast manufacturer’s installation and operating instructions.

Compliance & Environmental Information

ECOLOGIC® compact fluorescent lamp with 3.0 mg mercury content.
Meets Federal TCLP criteria for classification as non-hazardous waste.
Contains mercury and must be disposed of according to applicable local, state, and federal laws.
No UL, ETL, DLC, Title 20, Title 24, or JA8 certification was identified in the provided manufacturer datasheet.