GE

GE 10086 F13T5/CW 13W T5 Fluorescent Tube

4.6 (118 reviews)
21 inch13W

The GE F13T5/CW delivers 850 lumens of cool white light in a compact 21-inch T5 fluorescent tube built for task and under-cabinet fixtures.

$13.39*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The GE 10086 F13T5/CW is a 13-watt T5 fluorescent tube designed to deliver efficient, cool white illumination in compact fixture applications. At 21 inches long with a miniature bi-pin base, it slots into standard T5 fixtures commonly found in under-cabinet installations, desk lamps, and display case lighting. The tube outputs 850 lumens at a color temperature of 4100K, producing a neutral white light that works well for reading, task work, and general-purpose illumination in kitchens, workshops, and offices.

With a CRI of 60, this tube is best suited for environments where raw brightness and energy efficiency matter more than precise color rendering. It draws only 13 watts while delivering a respectable lumen output, making it a cost-effective choice for fixtures that see extended daily use. As with all fluorescent tubes, it requires a compatible ballast in the fixture and should be disposed of through proper recycling channels due to its mercury content. For those maintaining existing T5 fixture setups, the GE 10086 provides a dependable, readily available replacement option.

Key Features

21 inch , 13 Watt

850 lumens

4100K

CRI 60

Specifications

Brand
GE
Model
10086
Tube Type
T5
Wattage
13W
Length
21 inches
Lumens
850
Color Temperature
4100K (Cool White)
CRI
60
Base Type
Bi-Pin
Shape
Tubular (T)

Pros & Cons

👍 Pros

  • Produces 850 lumens from just 13 watts, offering strong energy efficiency for a fluorescent tube.
  • Compact 21-inch T5 form factor fits neatly into under-cabinet and desk lamp fixtures.
  • 4100K cool white color temperature provides clear, neutral light well-suited for workspaces.
  • Established GE brand with wide compatibility across standard T5 bi-pin fixtures.

👎 Cons

  • CRI of 60 is relatively low, making colors appear less accurate under this lamp compared to higher-CRI alternatives.
  • T5 bi-pin base limits compatibility to T5-specific fixtures only.
  • Fluorescent technology requires a compatible ballast, adding a point of failure compared to LED alternatives.
  • Contains a small amount of mercury, requiring proper disposal and recycling.

Frequently Asked Questions

This tube uses a standard miniature bi-pin (G5) base, which is the standard for T5 fluorescent lamps.
It produces a cool white light at 4100K, which is a neutral tone suitable for workspaces and task lighting areas.
This 13-watt tube produces 850 lumens, providing bright illumination relative to its low energy consumption.
No. This is a T5 tube with a 5/8-inch diameter and miniature bi-pin base. It requires a fixture designed specifically for T5 lamps and is not interchangeable with T8 or T12 fixtures.
The Color Rendering Index is 60, which is adequate for general task and utility lighting but not ideal for applications requiring accurate color evaluation.