Sylvania 21439 F17T8/CW/ECO 17W T8 4100K Cool White Fluorescent Lamp

Product Overview

Sylvania 21439 F17T8/CW/ECO 17W T8 4100K Cool White Fluorescent Lamp

The Sylvania 21439 (F17T8/CW/ECO) is a 17W T8 fluorescent lamp on a Medium Bi-Pin (G13) base. Rated 4100K cool white at 58 CRI, it delivers 1,200 initial lumens (865 mean).

Wattage

17W

Color Temp

4100K

Cool White

Lumens

1,200

Initial

CRI

Color Rendering

Rated Life

20,000-30,000

Hours

Technical Specifications

Item Number	21439
Ordering Abbreviation	F17T8/CW/ECO
Bulb Shape	T8
Base	Medium Bi-Pin (G13)
Wattage	17W
Nominal Length	Not listed – verify
MOL (Maximum Overall Length)	47.78"
Color Temperature	4100K (Cool White)
CRI	58
Initial Lumens	1,200 lm
Mean Lumens @ 25°C/77°F	865 lm
Average Rated Life	20,000 to 30,000 hours
Standard Package Quantity	30 per case

Product Overview

This Sylvania 17W T8 fluorescent lamp uses a Medium Bi-Pin (G13) base. Initial output is 1,200 lumens, dropping to 865 mean lumens at 25°C/77°F. This product is not covered in the Sylvania lighting catalog supplied; specifications were carried over from the previous ADL Supply listing and should be verified against the Sylvania datasheet before ordering. For ballast/lamp compatibility, refer to the Sylvania QUICKTRONIC ballast guide.

Compatible Applications

Fixtures specified for a 17W T8 lamp with a Medium Bi-Pin base
Direct replacement for the Sylvania 21439 (F17T8/CW/ECO)

Before Ordering – Verify

Confirm your ballast type is compatible with this lamp (see the Sylvania ballast guide)
Confirm 4100K color temperature matches the rest of your installation
Confirm lamp length and base type match your fixture

Safety and Handling Guidelines

Always disconnect power before servicing or installing
Handle by the base/end caps; avoid flexing or striking the glass tube
Contains mercury – if broken, ventilate the area and follow EPA cleanup guidance
Dispose of / recycle in accordance with state and local mercury-lamp regulations; recycle per lamprecycle.org