Sylvania 21870 FO28/950/40in 28W 40" T8 5000K Daylight Fluorescent Lamp

Product Overview

Sylvania 21870 FO28/950/40in 28W 40" T8 5000K Daylight Fluorescent Lamp

The Sylvania 21870 (FO28/950/40in) is a 28W 40" T8 fluorescent lamp on a Medium Bi-Pin (G13) base. Rated 5000K daylight at 90 CRI, it delivers 1,400 initial lumens (1,190 mean).

Wattage

28W

40" T8

Color Temp

5000K

Daylight

Lumens

1,400

Initial

CRI

Color Rendering

Rated Life

15,000-20,000

Hours

Technical Specifications

Item Number	21870
Ordering Abbreviation	FO28/950/40in
Bulb Shape	T8
Base	Medium Bi-Pin (G13)
Wattage	28W
Nominal Length	40"
MOL (Maximum Overall Length)	39.78"
Color Temperature	5000K (Daylight)
CRI	90
Initial Lumens	1,400 lm
Mean Lumens @ 25°C/77°F	1,190 lm
Average Rated Life	15,000 to 20,000 hours (varies by ballast type and hours per start; see the Sylvania catalog)
Standard Package Quantity	30 per case

Product Overview

This Sylvania 28W 40" T8 fluorescent lamp uses a Medium Bi-Pin (G13) base. Initial output is 1,400 lumens, dropping to 1,190 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 28W 40" T8 lamp with a Medium Bi-Pin base
Direct replacement for the Sylvania 21870 (FO28/950/40in)

Before Ordering – Verify

Confirm your ballast type is compatible with this lamp (see the Sylvania ballast guide)
Confirm 5000K color temperature matches the rest of your installation
Confirm lamp length (40") 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