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GE 33890 12-Inch Circline Fluorescent Cool White — main product image
GE 33890 12-Inch Circline Fluorescent Cool White
GE 33890 12-Inch Circline Fluorescent Cool White
GE 33890 12-Inch Circline Fluorescent Cool White
GE 33890 12-Inch Circline Fluorescent Cool White
GE 33890 12-Inch Circline Fluorescent Cool White
GE

GE 33890 12-Inch Circline Fluorescent Cool White

★★★★★4.6 (1460 reviews)

Light up garages and basements with this long-lasting 32-watt circline fluorescent bulb rated for up to 12,000 hours.

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Overview

The GE 33890 FC12T9 Circline Fluorescent Bulb is a 32-watt circular tube designed to deliver bright, efficient lighting in large spaces where overhead illumination is essential. With a 1,950-lumen output and a 4100 Kelvin cool white color temperature, it produces a clean, neutral light that is well suited for garages, basements, workshops, and utility rooms. The 12-inch circular form factor fits standard circline fixture sockets via its 4-pin G10q base, making it a straightforward replacement in compatible ceiling and wall-mounted fixtures.

Durability is a key advantage of the GE 33890. Rated for up to 12,000 hours of operation — roughly 5.5 years at 6 hours of daily use — it minimizes the inconvenience and cost of frequent bulb changes in hard-to-reach fixtures. GE's fluorescent lamps are a long-established standard in commercial and residential lighting, known for consistent light quality and low operating costs over the life of the bulb. For anyone maintaining circline fixtures in their home or workspace, the 33890 offers dependable, bright performance at a modest wattage.

Key Features

The GE circular light bulbs are ideal for large spaces; A perfect solution where light bulbs are needed for sizable spaces.

Use these 12-inch diameter circular light bulbs in garages and basements.

The GE FC12T9 circle light bulbs are long lasting and rated to last 5.5 years based on 6 hours of daily use.

The GE FC12T9 light bulbs emit a cool, white light with 4100 kelvin temperature and 1950 lumen output.

The circular base of this fluorescent light bulb is specially designed for fixture sockets.

Specifications

Brand
GE
Model
33890
Bulb Type
FC12T9 Circline Fluorescent
Wattage
32 Watts
Brightness
1,950 Lumens
Color Temperature
4100 Kelvin (Cool White)
Diameter
12 inches
Base Type
4-Pin (G10q)
Rated Lifespan
Up to 12,000 hours

Pros & Cons

👍 Pros

  • 1,950-lumen output delivers bright, even illumination across large areas like garages and basements.
  • 12,000-hour rated lifespan means infrequent bulb replacements over years of regular use.
  • 32-watt power draw provides strong brightness while keeping energy costs lower than incandescent alternatives.
  • 4100K cool white color temperature offers clean, neutral light well suited for workspaces and utility areas.

👎 Cons

  • Circline form factor limits compatibility to fixtures specifically designed for 12-inch FC12T9 bulbs.
  • 4-pin G10q base is not interchangeable with standard screw-in or bi-pin sockets.
  • Cool white 4100K tone may feel harsh in living rooms or bedrooms where warmer light is preferred.
  • Fluorescent tubes contain a small amount of mercury and require proper recycling at end of life.

Frequently Asked Questions

This is a 12-inch diameter circular fluorescent tube with a 4-pin G10q base, designed to fit standard circline fixture sockets that accept the FC12T9 form factor.
It is rated for up to 12,000 hours, which translates to approximately 5.5 years based on 6 hours of daily use.
It emits a cool white light at a color temperature of 4100 Kelvin, which is a clean, neutral white suitable for task lighting and general illumination.
The bulb produces 1,950 lumens of light output from just 32 watts of power consumption, making it an efficient choice for illuminating large spaces.

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