Sylvania 20584 FT40DL/830/RS/ECO

Product Overview

Sylvania 20584 FT40DL/830/RS/ECO Dulux L 40W 2G11 CFL – 3000K | 3150 Lumens | CRI 82

The Sylvania 20584 FT40DL/830/RS/ECO is a 40-watt Dulux L compact fluorescent lamp with a single-ended twin-tube configuration and 2G11 four-pin base. It produces 3,150 initial lumens at a 3000K warm-white color temperature with a CRI of 82. This lamp requires a compatible fluorescent ballast specifically approved for the FT40DL lamp type. Before ordering, verify the complete lamp code, wattage, base, dimensions, color temperature, ballast compatibility, and fixture requirements.

Wattage

40W

Compact Fluorescent

Initial Output

3150 lm

Nominal

Color

3000K

CRI 82

Base

2G11

4-Pin

Rated Life

20,000 hrs

Supplied Listing

Technical Specifications

Brand	Sylvania
Product Code / NAED	20584
Ordering Abbreviation	FT40DL/830/RS/ECO
Product Family	Dulux L
Lamp Technology	Compact fluorescent
Lamp Configuration	Single-ended twin tube
Tube Diameter Class	T5
Base	2G11 four-pin
Rated Wattage	40W
Color Code	830
Color Temperature	3000K
Color Description	Warm White
Color Rendering Index	82
Initial Lumens	3,150 lumens
Mean Lumens	2,710 lumens
Average Rated Life	20,000 hours
Maximum Overall Length	Approximately 22.4 in / 573 mm
Tube Diameter	Approximately 0.630 in / 16 mm
Ballast Requirement	Compatible ballast approved for FT40DL 40W four-pin lamps

Key Features & Benefits

40-watt Dulux L compact fluorescent lamp.
Single-ended twin-tube design for compatible compact luminaires.
Produces 3,150 initial lumens.
3000K warm-white light with an 82 CRI.
2G11 four-pin base for compatible lamp holders.
Approximately 2,710 mean lumens according to the supplied product information.
Rated average life of 20,000 hours according to the supplied listing.

Product Overview

The Sylvania 20584 FT40DL/830/RS/ECO is a long compact fluorescent lamp designed for fixtures using a 2G11 four-pin socket and compatible external ballast. Its folded twin-tube construction provides the light-producing length of a linear fluorescent source in a more compact configuration.

The lamp produces 3,150 initial lumens at 3000K, providing a warm-white appearance for compatible commercial and institutional lighting systems. Its 82 CRI supports general-purpose color rendering where the exact FT40DL/830 lamp specification is required.

This lamp does not contain an integrated ballast. It must be installed only in a fixture with control gear specifically approved for a 40W FT40DL four-pin compact fluorescent lamp. A matching base, wattage, or physical appearance alone does not establish ballast compatibility.

Compatible Applications

Fixtures specifically designed for FT40DL 40W lamps
Commercial compact fluorescent luminaires
Recessed fixtures using compatible 2G11 sockets
Office and institutional lighting
Retail and general interior lighting
Maintenance replacement where Sylvania product code 20584 is specified

Before Ordering – Verify

Product code: Confirm Sylvania product code 20584.
Complete lamp code: Verify FT40DL/830/RS/ECO.
Wattage: Confirm the fixture and ballast are designed for a 40W lamp.
Base: Verify the socket uses a 2G11 four-pin connection.
Color: The 830 designation identifies a 3000K warm-white lamp.
Ballast compatibility: Confirm the exact ballast model lists FT40DL 40W lamp operation.
Starting method: Match the lamp to the ballast and wiring method specified by the ballast manufacturer.
Dimming: Do not assume dimming compatibility. Both the ballast and lamp combination must be approved for dimming.
Dimensions: Verify the fixture accepts the published lamp length and tube diameter.
Not interchangeable: Do not substitute FT36W, FT50W, FT55W, two-pin, LED, or other 2G11 lamps solely because they appear physically similar.
Cross-references: Verify any alternative brand by electrical specifications, ballast listing, dimensions, and base configuration before substitution.

Safety and Installation Guidelines

Disconnect and lock out electrical power before inspecting, installing, or removing the lamp.
Use only with a compatible ballast and 2G11 four-pin lamp holder.
Do not connect the lamp directly to line voltage.
Do not install a lamp that is cracked, chipped, or otherwise damaged.
Insert the base carefully and do not force it into an incompatible socket.
Allow the lamp and fixture to cool before handling.
Follow the ballast and fixture manufacturers’ wiring and installation instructions.
Installation and servicing should be performed by qualified personnel.

End-of-Life and Ballast Protection

Compact fluorescent lamps can experience elevated temperatures near the lamp base as they approach end of life. Use control gear designed for the exact lamp type and equipped with appropriate end-of-life protection where required by the ballast or fixture manufacturer.

Do not continue operating a lamp that flickers continuously, cycles repeatedly, shows darkened or overheated base areas, or causes visible socket damage. Disconnect power and inspect the lamp, ballast, wiring, and lampholder before returning the fixture to service.

Compliance & Environmental Information

This compact fluorescent lamp contains mercury and should be recycled or disposed of according to applicable regulations.
No ANSI, TCLP, UL, ETL, RoHS, ENERGY STAR, DLC, Title 20, Title 24, or JA8 claim has been independently verified without the manufacturer datasheet.
The Ecologic designation and environmental claims should be confirmed against the official Sylvania product sheet before publication.