1. Product Overview
The Feit Electric 48' LED Filament String Light Set is designed to provide durable and energy-efficient lighting for various indoor and outdoor settings. This set features shatter-resistant LED filament bulbs that emit a warm, inviting light. With the ability to connect multiple sets, you can illuminate large areas such as patios, backyards, or event venues.

Image: Feit Electric 48' LED Filament String Light Set in its retail packaging.
2. Safety Information
Please read and understand all safety instructions before installation and use. Failure to follow these instructions may result in electric shock, fire, or other hazards.
- Ensure the power is off before installing or servicing the lights.
- This product is rated for both indoor and outdoor use, including wet locations. However, ensure all connections are secure and protected from direct water exposure.
- Do not submerge the lights or any electrical components in water.
- Use only with compatible dimmers if utilizing the dimmable feature. (Note: This product does not include a built-in dimmer or remote control.)
- Do not connect more than 45 sets (2,160 feet total) to a single power source.
- Keep bulbs and sockets clear of debris and flammable materials.
3. Package Contents
- 1 x 48-foot LED Filament String Light Strand
- 24 x 1-watt LED Filament Bulbs (sockets spaced 2 feet apart)
4. Specifications
| Feature | Specification |
|---|---|
| Brand | Feit Electric |
| Model Number | 72121 |
| Length | 48 feet (14.6 meters) |
| Number of Bulbs | 24 |
| Bulb Spacing | 2 feet |
| Light Source Type | LED Filament |
| Wattage (per bulb) | 1 Watt |
| Total Wattage (per set) | 24 Watts |
| Color Temperature | 2200K (Warm White) |
| Voltage | 115 Volts |
| Water Resistance Level | Water Resistant (Suitable for wet locations) |
| Special Feature | Dimmable (requires compatible dimmer) |
| Item Weight | 6.83 pounds |
| Product Dimensions | 16 x 9 x 9 inches |
5. Setup and Installation
Follow these steps to set up your Feit Electric String Lights:
- Plan Your Layout: Determine where you want to hang the lights. Consider the length of the strand (48 feet) and the spacing of the sockets (2 feet). If you need longer coverage, you can connect up to 45 sets end-to-end for a maximum length of 2,160 feet.
- Secure Mounting Points: Use appropriate hardware (e.g., hooks, zip ties, guide wires) to secure the string light cable. Ensure the mounting points are strong enough to support the weight of the lights, especially in outdoor environments where wind and weather can add stress.
- Install Bulbs: Carefully screw each LED filament bulb into its respective socket. The bulbs are shatter-resistant, but gentle handling is always recommended.
- Connect to Power: Once all bulbs are installed and the string is securely mounted, plug the power cord into a standard 115V electrical outlet. For outdoor use, ensure the outlet is a GFCI (Ground Fault Circuit Interrupter) protected outlet.
- Connecting Multiple Strands: If connecting multiple sets, ensure the male and female connectors are fully seated and the weather-resistant caps are tightened to prevent moisture ingress.

Image: Close-up view of the Feit Electric LED string lights, showing the bulbs and sockets.
6. Operating Instructions
Operating your Feit Electric String Lights is straightforward:
- Power On/Off: Plug the string lights into a power outlet to turn them on. Unplug them or use a switched outlet to turn them off.
- Dimmable Functionality: If you wish to dim the lights, connect the string to a compatible external dimmer switch (sold separately). Follow the dimmer's instructions for installation and operation.
7. Maintenance
Regular maintenance will help prolong the life of your string lights:
- Cleaning: Periodically wipe down the bulbs and cables with a soft, damp cloth to remove dust and dirt. Ensure the lights are unplugged before cleaning.
- Bulb Replacement: Although the bulbs are shatter-resistant, they may eventually need replacement. Always unplug the string lights before attempting to replace any bulbs. Use only Feit Electric replacement bulbs designed for this string light set to ensure compatibility and safety.
- Storage: If storing the lights for an extended period, clean them thoroughly, coil the string neatly, and store in a cool, dry place away from direct sunlight.

Image: A hand holding a single Feit Electric LED filament bulb, demonstrating its design.
8. Troubleshooting
If you encounter issues with your string lights, refer to the following common problems and solutions:
- Lights Not Turning On:
- Check if the power cord is securely plugged into a working outlet.
- Verify that the outlet has power by testing it with another device.
- Ensure all bulbs are screwed in tightly. A loose bulb can prevent the entire strand from lighting up.
- Check for any tripped circuit breakers or GFCI outlets.
- Some Bulbs Not Lighting Up:
- Tighten any loose bulbs.
- Replace any visibly damaged or non-functioning bulbs.
- Flickering Lights:
- Ensure the power connection is stable.
- If using a dimmer, ensure it is compatible with LED lights and is functioning correctly.
- Check for loose bulb connections.
If problems persist after attempting these troubleshooting steps, please contact Feit Electric customer support for further assistance.





