Sylvania Dulux D/E Ecologic Di...
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Sylvania Dulux D/E Ecologic Dimmable T4 Compact Fluorescent Lamp

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Model: 20667

In Stock (leaves warehouse same day if ordered before 3pm ET)

$3.85
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Sylvania Dulux D/E Ecologic Dimmable T4 Compact Fluorescent Lamp

The Sylvania Dulux® D/E Ecologic® series is a family of dimmable T4 compact fluorescent lamps engineered for reliable, energy-efficient performance in commercial and industrial fixtures. This lamp family is available in three wattage/color-temperature configurations — 13W-4100K, 26W-4100K, and 26W-3500K — so specifiers can match the exact light output and color appearance a given fixture or application calls for. Every configuration shares an 82 CRI rating and dimmable operation, giving facility managers and contractors the flexibility to integrate compact fluorescent lighting into dimming control systems without sacrificing color consistency. As a Dulux® D/E design, these lamps use a 4-Pin G24q-3 base, making them a straightforward retrofit or new-construction solution wherever dimmable CFL technology is specified.

Key Features

  • Lamp Type: T4 compact fluorescent lamp from the Sylvania Dulux® D/E Ecologic® family, built for long-term commercial service.
  • Available Configurations: Choose from 13W-4100K, 26W-4100K, or 26W-3500K to match the desired light output and color appearance for the application.
  • Color Rendering: 82 CRI across all configurations ensures dependable color accuracy for office, retail, and industrial spaces.
  • Base Type: 4-Pin G24q-3 base is designed for compatibility with fixtures and ballasts built for this pin configuration.
  • Dimmable Operation: Every configuration in this family is compatible with dimming ballast systems, allowing adjustable light levels for energy savings and occupant comfort.
  • Ecologic® Design: Part of the Ecologic® product line from Sylvania, reflecting the manufacturer's environmentally focused lamp engineering.
  • Rated Life: 20000 hours average rated life for long service intervals and reduced relamping frequency.

Technical Specifications

  • Lamp Type: T4 Compact Fluorescent (CFL)
  • Available Options: 13W-4100K, 26W-4100K, 26W-3500K
  • Base: 4-Pin G24q-3
  • Color Rendering Index: 82 color rendering index
  • Dimming: Dimmable
  • Average Rated Life: 20000 hours
  • Bulb Type: T4X2
  • Units Per Case: 50
  • Series: Dulux® D/E Ecologic®

Typical Applications

  • Commercial Office and Retail Lighting
  • Downlight and Wall-Mounted Fixtures Using G24q-3 Sockets
  • Dimmable Fluorescent Lighting Control Systems
  • Hospitality, Healthcare, and Institutional Facilities
  • Energy-Efficient Fluorescent Lamp Retrofits

Why Sylvania?

Sylvania's Dulux® D/E Ecologic® series pairs dimmable compact fluorescent performance with the 82 CRI professionals rely on for consistent, code-appropriate lighting quality across its 13W-4100K, 26W-4100K, and 26W-3500K configurations. The shared 4-Pin G24q-3 base and 20000-hour rated life make this family a straightforward fit for fixtures specified around this base, giving contractors and facility teams a dependable, dimmable fluorescent lamp option for ongoing maintenance and retrofit programs.

Manufacturer Resources

Product Specs

Product Type:
Compact Fluorescent Lamp
Product Wattage:
26W
Bulb Base:
G24q-3
Lumens:
1710
CRI:
82
Light Temperature:
4100K
Dimmable:
Yes
Series:
Dulux D/E Ecologic
Department:
Electrical
Product Group:
Lighting
Product Subgroup:
Lamps & Bulbs
list_batch:
SYL-20260924
Average Rated Life:
20000 hours
Color Rendering Index:
82 color rendering index
Units Per Case:
50
Bulb Type:
T4X2

Sylvania 20667 – Frequently Asked Questions

1) Will a Sylvania Dulux D/E Ecologic CFL fit a G24d-3 two-pin socket?
No. The Dulux D/E Ecologic lamps use a 4-pin G24q-3 base, which only seats in a 4-pin G24q-3 socket. A G24d two-pin socket is a magnetic preheat socket with a different pin layout and won't accept this lamp. If your fixture has two-pin sockets, you need a Dulux D (two-pin) lamp instead, not the D/E.
2) Do I need a dimming ballast to dim these Sylvania Dulux D/E CFLs?
Yes. These are dimmable 4-pin CFLs, which means the dimming is done by the ballast, not by the lamp. Put one in a fixture with a standard non-dimming electronic ballast and it runs at full output only. You need a dimming 4-pin CFL ballast wired to a compatible control for the lamp to dim.
3) Can I put a 26W Dulux D/E in a fixture that currently has an 18W lamp?
Not without changing the ballast. Although the 13W, 18W, and 26W versions all share the G24q-3 base and will physically seat in the same socket, 4-pin CFL ballasts are wattage-specific. Running a 26W lamp on an 18W ballast gives you reduced output and shortened lamp life. Match the replacement lamp wattage to what the ballast label states.
4) How many lumens does the 26W Dulux D/E Ecologic CFL put out?
1710 lumens at 26W, 4100K. That is the figure to use when you are checking footcandle levels on a downlight layout or comparing against an LED retrofit lamp. Lower wattages in the family produce proportionally less output.
5) What bulb shape is the Dulux D/E Ecologic lamp, and will it clear a shallow downlight can?
It is a T4 twin-tube design, catalogued as bulb type T4X2, meaning two narrow T4 tubes bridged at the top on a single 4-pin base. That is a more compact envelope than a quad-tube or spiral lamp of the same wattage, which is why these are common in recessed downlights and wall sconces built around G24q-3 sockets. Check the fixture's rated lamp designation, since can depth varies by housing.
6) Is 82 CRI good enough for office and retail relamping?
82 CRI is the standard commercial grade for fluorescent lighting and is what most office, corridor, and general retail specs call for. Where it falls short is color-critical work, merchandise display of fabrics or paint, and some healthcare exam areas, which typically call for 90+ CRI. All four wattage/color options in the Dulux D/E Ecologic family are 82 CRI, so swapping between them won't change color rendering.
7) How long do these Sylvania Dulux D/E lamps last before relamping?
Average rated life is 20,000 hours. On a 12-hour-a-day commercial schedule that works out to roughly four and a half years, which is why facility teams group-relamp these on a planned cycle rather than chasing individual failures. Note rated life for CFLs assumes reasonable switching cycles; frequent on/off in occupancy-sensor spaces shortens it.
8) How are the Sylvania Dulux D/E Ecologic CFLs packed for bulk orders?
50 lamps per case. For a maintenance stockroom or a multi-building relamp that makes it easy to figure quantities by fixture count, and it is the pack size to quote when you are standardizing a facility on one wattage and color temperature.
How fast can I get the Sylvania 20667 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Sylvania 20667 come with a warranty?
Absolutely. The Sylvania 20667 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Sylvania 20667?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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