Sylvania 21766 F13T8/CW 13W 12" T8 4200K Cool White Fluorescent Lamp

Product Overview

Sylvania 21766 F13T8/CW 13W 12" T8 4200K Cool White Fluorescent Lamp

The Sylvania 21766 (F13T8/CW) is a 13W 12" T8 fluorescent lamp on a Medium Bi-Pin (G13) base. Rated 4200K cool white at 60 CRI, it delivers 530 initial lumens (460 mean).

Wattage

13W

12" T8

Color Temp

4200K

Cool White

Lumens

530

Initial

CRI

Color Rendering

Rated Life

7,500

Hours

Technical Specifications

Item Number	21766
Ordering Abbreviation	F13T8/CW
Bulb Shape	T8
Base	Medium Bi-Pin (G13)
Wattage	13W
Nominal Length	12"
MOL (Maximum Overall Length)	11.71"
Color Temperature	4200K (Cool White)
CRI	60
Initial Lumens	530 lm
Mean Lumens @ 25°C/77°F	460 lm
Average Rated Life	7,500 hours (3 hours per start)
Standard Package Quantity	24 per case

Product Overview

This Sylvania 13W 12" T8 fluorescent lamp uses a Medium Bi-Pin (G13) base. Initial output is 530 lumens, dropping to 460 mean lumens at 25°C/77°F. Specifications were taken from the Sylvania lighting catalog. For ballast/lamp compatibility, refer to the Sylvania QUICKTRONIC ballast guide.

Compatible Applications

Fixtures specified for a 13W 12" T8 lamp with a Medium Bi-Pin base
Direct replacement for the Sylvania 21766 (F13T8/CW)

Before Ordering – Verify

Confirm your ballast type is compatible with this lamp (see the Sylvania ballast guide)
Confirm 4200K color temperature matches the rest of your installation
Confirm lamp length (12") 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