Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Feit Electric T8/T12 LED Tube Lights. These 4-foot LED tubes are designed as a direct replacement for traditional fluorescent lamps, offering energy efficiency and long-lasting performance. They feature a 5000K Daylight color temperature, producing 1800 lumens while consuming only 14 watts.
The Feit Electric T8/T12 LED Tube Lights are a 'Plug & Play' (Type A) solution, meaning they are compatible with existing fluorescent fixtures that utilize an electronic or magnetic ballast, without requiring any rewiring of the fixture.

Image: Feit Electric 4ft LED Universal Direct Replacement T8 & T12 Fluorescent Lamps, showing the product's compatibility and light output.
Safety Information
- Always turn off power to the fixture at the circuit breaker before inspection, installation, or removal.
- Do not install this lamp in a fixture with a dimming ballast. This lamp is non-dimmable.
- Ensure the fixture is properly grounded.
- Do not bend the tube during installation or removal, as this may damage the lamp.
- This lamp is designed for indoor use and suitable for damp locations.
- Verify that your existing ballast is compatible with Type A LED tubes. Refer to the 'Compatible Ballasts' section.
- If the lamp or fixture operates abnormally (flickering, humming, etc.), turn off power and contact a qualified electrician.
Setup and Installation
These Feit Electric LED tubes are designed for simple 'Plug & Play' installation, directly replacing existing T8 or T12 fluorescent tubes without requiring ballast bypass or fixture rewiring. Ensure the power is off before proceeding.
Installation Steps:
- Turn Off Power: Locate the circuit breaker controlling the fluorescent fixture and switch it to the OFF position. Confirm power is off by attempting to turn on the light switch.
- Remove Existing Fluorescent Tubes: Carefully twist the old fluorescent tubes 90 degrees and gently pull them out of the lamp holders.
- Insert LED Tubes: Align the pins of the Feit Electric LED tube with the slots in the lamp holders. Insert the pins and twist the tube 90 degrees until it locks securely into place.
- Restore Power: Turn the circuit breaker back to the ON position.
- Test Operation: Turn on the light switch to confirm proper operation of the new LED tube.

Image: Hands installing a Feit Electric LED tube light into a fixture, illustrating the direct replacement (Type A) installation process.
Ballast Compatibility:
These LED tubes are designed to work with both electronic and magnetic ballasts. However, compatibility can vary. It is crucial to ensure your existing ballast is listed as compatible. Refer to the images below for a list of compatible ballasts. If your ballast is not listed, consult a qualified electrician or contact Feit Electric support.

Image: A detailed list of compatible ballasts for Feit Electric LED tube lights, indicating which models are supported for proper function.

Image: A continuation of the detailed list of compatible ballasts, providing further reference for users to check their existing ballast models.
Operating Instructions
Once installed, the Feit Electric T8/T12 LED Tube Light operates like a standard fluorescent tube. Simply use the existing wall switch or fixture switch to turn the light on or off. These LED tubes provide instant full brightness with no flickering or strobing.

Image: An illuminated Feit Electric LED tube light in a ceiling fixture, demonstrating the 5000K Daylight color temperature.
Maintenance
Feit Electric LED tubes are designed for minimal maintenance. They are shatterproof and 100% mercury-free.
- Cleaning: To clean the tube, ensure the power is off at the circuit breaker. Use a soft, dry, or slightly damp cloth. Do not use abrasive cleaners or solvents.
- Replacement: With an average life of 50,000 hours, these LED tubes require infrequent replacement. When replacement is necessary, follow the installation steps outlined above.
Troubleshooting
If you encounter issues with your Feit Electric LED Tube Light, refer to the following common troubleshooting steps:
- Light Does Not Turn On:
- Ensure the power switch is ON and the circuit breaker is not tripped.
- Verify the LED tube is securely seated in the lamp holders.
- Check if your existing ballast is compatible (refer to 'Compatible Ballasts' section). An incompatible or failing ballast may prevent the LED tube from lighting.
- Test the LED tube in another known working fixture, if available, to rule out a faulty tube.
- Light Flickers or Appears Dim:
- Flickering often indicates an incompatible or failing ballast. Confirm ballast compatibility.
- Ensure the tube is fully inserted and twisted into the lamp holders.
- These tubes are non-dimmable. Do not use with dimming ballasts or dimmer switches.
- Physical Damage:
- If the tube appears physically damaged (e.g., rattling sound inside), do not install or use it. Contact customer support for a replacement.
If these steps do not resolve the issue, contact Feit Electric customer support for further assistance.
Specifications

Image: Key product specifications for the Feit Electric LED tube lights, detailing energy efficiency, light output, and base type.
| Feature | Detail |
|---|---|
| Model Number | T48/850/LEDG2/4 |
| Light Type | LED |
| Bulb Shape Size | T8/T12 |
| Bulb Base | G13 (Bi-Pin) |
| Wattage | 14 Watts |
| Incandescent Equivalent Wattage | 32-40 Watts |
| Brightness | 1800 Lumens |
| Light Color | 5000K (Daylight) |
| Voltage | 120 Volts (100 to 120 Volts and 60 Hertz) |
| Dimmable | No |
| Average Life | 50,000 Hours |
| Material | Plastic (Shatterproof) |
| Product Dimensions | 1"W x 1"H (Length: 48 inches, Width: 1.1 inches) |
| Certifications | ETL Listed, RoHS Compliant, DLC Certified |

Image: A diagram illustrating the product dimensions of the Feit Electric LED tube light, highlighting its 48-inch length and 1.1-inch width, along with its shatterproof coating.
Warranty
Feit Electric provides a 5-year warranty for this product. For warranty claims or details, please retain your proof of purchase and contact Feit Electric customer support.
Support
For technical assistance, troubleshooting not covered in this manual, or warranty inquiries, please contact Feit Electric customer support:
- Visit the official Feit Electric website for contact information.
- Refer to the packaging for specific customer service phone numbers or email addresses.





