
GE
GE 10086 F13T5/CW 13W T5 Fluorescent Tube
★★★★★
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
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
What base type does the GE 10086 fluorescent tube use?
This tube uses a standard miniature bi-pin (G5) base, which is the standard for T5 fluorescent lamps.
What color temperature does this tube produce?
It produces a cool white light at 4100K, which is a neutral tone suitable for workspaces and task lighting areas.
How many lumens does the GE F13T5/CW output?
This 13-watt tube produces 850 lumens, providing bright illumination relative to its low energy consumption.
Will this tube fit in a standard T8 fixture?
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.
What is the CRI rating on this tube?
The Color Rendering Index is 60, which is adequate for general task and utility lighting but not ideal for applications requiring accurate color evaluation.