Sylvania Dulux T/E/IN Ecologic...
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Sylvania Dulux T/E/IN Ecologic Triple-Tube Compact Fluorescent Lamp

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Model: 20871

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

$5.47
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Sylvania Dulux® T/E/IN Ecologic® Triple-Tube Compact Fluorescent Lamp

The Sylvania Dulux® T/E/IN Ecologic® series is a family of T4 triple U-tube amalgam compact fluorescent lamps engineered for high-output commercial and industrial lighting applications, available in models 20871 and 20890. These lamps feature a 4-pin GX24q-4 base for compatibility with electronic ballast fixtures designed for dimming and programmed start, and share Sylvania's amalgam construction for stable light output across varying ambient temperatures. With a Rare Earth Tri-Phosphor coating delivering an 82 CRI rating and a 4100K cool white color temperature, this series is suited for offices, retail spaces, and general-purpose commercial environments requiring accurate, consistent color rendering. As part of Sylvania's broader Ecologic® line, these lamps are a straightforward retrofit solution for facilities standardizing on 4-pin compact fluorescent fixtures.

Key Features

  • Lamp Type: T4 triple U-tube design for compact, high-output lighting in a small footprint.
  • Amalgam Construction: Ecologic® Dulux® T/E/IN amalgam technology supports stable performance over a range of operating temperatures.
  • Color Rendering: 82 CRI Rare Earth Tri-Phosphor coating provides accurate, natural color rendering.
  • Color Temperature: 4100K cool white output suited for offices, retail, and task-oriented commercial spaces.
  • Base Type: 4-pin GX24q-4 base compatible with electronic ballast fixtures designed for dimming and programmed start.
  • Model Options: Available as model 20871 or 20890 within the Dulux® T/E/IN Ecologic® family, both built on the same triple U-tube amalgam platform.
  • Energy Efficient: Compact fluorescent design delivers efficient energy use for commercial fixtures compared to standard incandescent sources.

Technical Specifications

  • Product Type: CFL Lamp
  • Product Wattage: 42W
  • CRI: 82
  • Series: Dulux T/E/IN Ecologic
  • Bulb Type: T4X3
  • Color Rendering Index: 80-89 color rendering index
  • Base: 4-Pin GX24q-4
  • Color Temperature: 4100K

Typical Applications

  • Commercial Office and Retail Lighting
  • Downlight and Recessed Fixtures Using GX24q-4 Sockets
  • Electronic Ballast-Compatible Fixtures
  • General-Purpose Commercial and Industrial Illumination
  • Fixture Retrofits Requiring 4-Pin Compact Fluorescent Lamps

Why Sylvania?

Sylvania's Dulux® Ecologic® compact fluorescent lamps combine Rare Earth Tri-Phosphor coatings with amalgam technology to deliver dependable light output and consistent color rendering for demanding commercial environments. The 4-pin GX24q-4 base and triple U-tube design across the 20871 and 20890 models make this series a straightforward retrofit choice for facilities standardizing on electronic ballast fixtures, backed by Sylvania's reputation for quality lighting components.

Manufacturer Resources

Product Specs

Product Type:
Compact Fluorescent Lamp
Product Wattage:
42W
Light Temperature:
4100K
Bulb Base:
GX24q-4
CRI:
82
Lumens:
3104-3200
Series:
Dulux T/E/IN Ecologic
Department:
Electrical
Product Group:
Lighting
Product Subgroup:
Lamps & Bulbs
list_batch:
SYL-20260928
Case Length:
19.843 inches
Case Depth:
7.402 inches
Base:
GX24Q-4
Units Per Case:
50
Pallet Quantity:
3000
Bulb Type:
T4X3
Case Width:
9.409 inches
Case Cube:
0.800 feet
Color Rendering Index:
80-89 color rendering index

Sylvania 20871 – Frequently Asked Questions

1) Will a Sylvania Dulux T/E/IN 42W CFL fit a GX24q-3 socket?
No. The Dulux T/E/IN Ecologic 42W triple-tube lamp uses a GX24q-4 base, and the keying on the q-series bases differs by number so a q-4 lamp will not seat in a q-3 socket. GX24q-3 sockets take 32W lamps; the q-4 keying corresponds to the 42W rating. If your fixture socket is a q-3, you need the 32W lamp instead.
2) Can I run this 42W triple-tube CFL on a magnetic ballast?
No. The 4-pin GX24q-4 Dulux T/E/IN Ecologic lamp is built for electronic ballast fixtures, including dimming and programmed-start ballasts. Four-pin CFLs have no integral starter, so the ballast has to provide starting and control. Confirm the fixture's ballast is rated for a 42W triple-tube CFL before ordering.
3) How much light does the 42W Sylvania Dulux triple-tube CFL put out?
Output is 3,104 to 3,200 lumens at 42 watts, with a 4100K cool white color and 82 CRI. That lumen range puts it in the right band to replace a 42W triple-tube CFL in a commercial downlight without changing the fixture's photometrics.
4) Is 4100K the right color for an office, or should I use 3000K?
4100K is a neutral cool white, the usual choice for offices, retail floors and task-oriented commercial space, and it is what the Dulux T/E/IN Ecologic 42W lamp produces. It reads cooler and crisper than a 3000K warm white, which suits hospitality and residential-feel areas. If the other lamps in the building are 4100K, stay with it so adjacent fixtures match; mixing color temperatures in one space is obvious to the eye. The 82 CRI puts it in the 80-89 band, which is standard for commercial offices.
5) Why choose an amalgam CFL for a recessed can or a cold garage?
Amalgam lamps hold their light output over a wider ambient temperature range than standard CFLs, which is why the Dulux T/E/IN Ecologic uses it. Standard CFLs lose output when they run hot in a tight enclosed downlight or cold in an unheated space. In an enclosed recessed can or a parking structure, the amalgam version keeps output stable where a non-amalgam lamp would dim off or come up slowly.
6) Can I dim these 4-pin triple-tube CFLs?
Dimming comes from the ballast, not the lamp. The GX24q-4 4-pin Dulux T/E/IN Ecologic lamp is compatible with electronic ballast fixtures built for dimming and programmed start, so it will dim only where the fixture already has a dimming ballast. A 2-pin CFL cannot dim at all, which is the reason 4-pin is specified on dimmed circuits.
7) How many of these 42W CFL lamps come in a case?
50 lamps per case. The case measures 19.843 x 9.409 x 7.402 inches at 0.800 cubic feet, and a full pallet runs 3,000 lamps. For a facility re-lamping a floor at a time, the 50-count case is the practical buying unit.
8) What does T4X3 mean on this Sylvania CFL spec?
T4X3 describes the glass: three T4 U-shaped tubes bundled together, which is what gets 42 watts and over 3,100 lumens into a short envelope that fits a recessed downlight. If your fixture has a twin-tube (two-tube) lamp in it now, the triple-tube is physically wider and may not clear the same socket cup, so check the lamp you pulled.
How fast can I get the Sylvania 20871 delivered?
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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 20871 come with a warranty?
Absolutely. The Sylvania 20871 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 20871?
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