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GE 31305 2-Bulb Electronic Fluorescent Light Ballast — main product image
GE 31305 2-Bulb Electronic Fluorescent Light Ballast
GE 31305 2-Bulb Electronic Fluorescent Light Ballast
GE 31305 2-Bulb Electronic Fluorescent Light Ballast
GE 31305 2-Bulb Electronic Fluorescent Light Ballast
GE

GE 31305 2-Bulb Electronic Fluorescent Light Ballast

★★★★★4.6 (28 reviews)

Keep fluorescent fixtures running efficiently with this 4-pack electronic ballast for F40T12, F30T12, and F25T12 lamps.

$52.99*
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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 31305 is a 2-bulb electronic fluorescent ballast packaged in a contractor value pack of four units, making it a practical choice for maintaining or upgrading multiple fluorescent light fixtures at once. It is designed for 120V residential circuits and supports three common T12 fluorescent lamp types: F40T12, F30T12, and F25T12. As an electronic ballast, it replaces older magnetic models with a lighter, cooler-running unit that eliminates the audible hum and visible flicker associated with aging magnetic ballasts.

The rapid start design preheats the lamp cathodes before ignition, which provides a smoother startup sequence and can extend the overall life of your fluorescent tubes compared to instant start alternatives. For homeowners or contractors looking to keep existing T12 fluorescent fixtures operational, this 4-pack offers a cost-effective way to stock up on replacement ballasts. It is worth noting that this ballast is strictly a 120V residential product and is limited to 2-lamp configurations, so verifying your fixture type and electrical setup before purchasing is essential.

Key Features

Contractor Value Pack: 4 Ballast

2 lamp bulb residential ballast fixtures using F40T12, F30T12, and F25T12

Designed for use on 120V residential circuits

Electronic ballast

Rapid start

Specifications

Brand
GE
Model
31305
Type
Electronic Ballast
Start Type
Rapid Start
Lamp Configuration
2-Bulb
Compatible Lamps
F40T12, F30T12, F25T12
Voltage
120V
Package Quantity
4 Ballasts

Pros & Cons

👍 Pros

  • Contractor 4-pack provides enough ballasts for multiple fixture replacements in a single purchase
  • Electronic design runs cooler and more efficiently than older magnetic ballasts
  • Compatible with three common T12 lamp sizes gives flexibility across different fixture setups
  • Rapid start operation preheats electrodes for smoother lamp ignition and reduced flicker at startup

👎 Cons

  • Only rated for 120V residential circuits, so it cannot be used on 277V commercial lines
  • Limited to 2-lamp fixtures, ruling it out for 3- or 4-lamp troffer replacements
  • Supports only T12 tubes, which are being phased out in favor of T8 and LED alternatives
  • No included wiring diagram or mounting hardware may require sourcing instructions separately

Frequently Asked Questions

This is a contractor value pack that includes 4 electronic ballasts.
It supports 2-lamp fixtures using F40T12, F30T12, and F25T12 fluorescent tubes.
This ballast is designed for 120V residential circuits only and is not compatible with 277V commercial wiring.
This is a rapid start electronic ballast, which preheats the lamp electrodes before striking the arc for smoother startups and longer lamp life.

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