Sylvania 20871 CF42DT/E/IN/835/ECO Dulux T/E – 42W | 4-Pin | 3500K Neutral White | Triple Tube Amalgam CFL

The Sylvania 20871 (CF42DT/E/IN/835/ECO) is a high-output 42-watt triple-tube compact fluorescent lamp from the Dulux® T/E ECOLOGIC® family. Featuring advanced Amalgam technology, this lamp maintains 90% of its 3,200-lumen output across a wide temperature range, making it ideal for both indoor commercial fixtures and protected outdoor environments. With its GX24q-4 4-pin base, it is designed for use with electronic and dimming ballasts, providing a balanced 3500K neutral white light and high color rendering (82 CRI). UPC: 046135208713.

Wattage

42W

Triple Tube

Lumens

3,200

Initial

Base

4-Pin

GX24q-4

Color Temp

3500K

Neutral White

Rated Life

16,000

Hours

Quick Specs

Brand: Sylvania Dulux T/E ECOLOGIC
Order Code: 20871
Abbreviation: CF42DT/E/IN/835/ECO
Wattage: 42W
Initial Lumens: 3200 lm (at 35°C)
Color Temperature: 3500K Neutral White
Color Rendering Index (CRI): 82
Base Type: GX24q-4 (4-Pin)
Bulb Shape: T4
Dimensions: 6.5" MOL (165mm) | 0.47" Diameter
Technology: Amalgam for stable light output
Compliance: Federal TCLP compliant (Lead-Free)

Product Overview

The Sylvania 20871 is engineered for high-performance applications where consistency is key. Unlike standard CFLs, its amalgam design ensures it maintains high lumen efficacy even in varying temperatures, typical of recessed downlights and enclosed fixtures. As part of the ECOLOGIC family, it passes the Federal TCLP test, qualifying as non-hazardous waste in most jurisdictions. This lamp is an energy-efficient replacement for 150W-190W incandescent lamps, significantly reducing energy consumption and maintenance cycles.

Applications

Recessed Downlights: Optimized for the high-temperature environment of ceiling cans.
Commercial Offices: Provides balanced, neutral white light for productivity.
Retail & Hospitality: Excellent color rendering for merchandise and public spaces.
Outdoor Fixtures: Suitable for use in protected, enclosed outdoor luminaires.

Technical Notes

? Performance Insight:

This lamp is intended for use with electronic and dimming ballasts. The amalgam technology allows for a fast run-up to full brightness and maintains 90% of lumens from 40°F to 140°F ambient temperatures.

End-of-Life Protection: NEMA recommends using ballasts with an EOL shutdown circuit to prevent overheating.
Life Maintenance: Rated life is based on 3-hour burn cycles; extending the cycle significantly increases average hours.
Equivalent: Cross-references with GE 97635 (F42TBX/835/A/ECO) and Philips 149021 (PL-T 42W/835/4P).