1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of your Sylvania FP21/841/ECO 21W T5 Fluorescent Bulb. Please read these instructions carefully before use and retain them for future reference. This bulb is designed for general illumination in compatible T5 fluorescent fixtures.
2. Safety Information
WARNING: Risk of Electric Shock. Always turn off power at the circuit breaker or fuse box before installing, removing, or servicing the bulb.
- Do not use this bulb in fixtures other than those designed for T5 fluorescent lamps.
- Handle the bulb with care. Dropping or mishandling can cause breakage.
- Fluorescent bulbs contain a small amount of mercury. In case of breakage, ventilate the area and follow local guidelines for cleanup and disposal.
- Ensure the bulb is fully seated in the fixture's lampholders before restoring power.
- Do not operate the bulb if it is cracked or damaged.
- Keep away from children.
3. Product Overview
The Sylvania FP21/841/ECO is a 21-watt T5 fluorescent bulb, part of the 800 Series, offering a color temperature of 4100 Kelvin. It is an energy-efficient light source with a high Color Rendering Index (CRI) of 85, providing bright and natural-looking light. This bulb has an average rated life of 20,000 hours and produces an initial lumen output of 2100 lumens.
An image showing the Sylvania FP21/841/ECO 21W T5 fluorescent bulb, typically a long, slender tube with pins at each end.
4. Setup & Installation
- Turn Off Power: Before beginning installation, ensure the power to the fixture is completely off at the circuit breaker or fuse box. Verify with a voltage tester if necessary.
- Remove Old Bulb (if applicable): If replacing an existing bulb, carefully twist the old bulb approximately 90 degrees and gently pull it out of the lampholders.
- Insert New Bulb: Align the pins of the Sylvania FP21/841/ECO bulb with the slots in the fixture's lampholders. Gently push the bulb into the lampholders until the pins are fully engaged.
- Rotate Bulb: Rotate the bulb approximately 90 degrees until it locks securely into place. Ensure it is firmly seated and does not wobble.
- Restore Power: Once the bulb is securely installed, restore power to the fixture from the circuit breaker or fuse box.
Note: Always ensure the fixture is compatible with T5 fluorescent bulbs and the correct wattage.
5. Operating Instructions
Once the Sylvania FP21/841/ECO fluorescent bulb is correctly installed in a compatible fixture and power is restored, the bulb will illuminate when the fixture's switch is turned on. No special operating procedures are required beyond standard fixture operation.
6. Maintenance
- Cleaning: To maintain optimal light output, periodically clean the bulb with a soft, dry, lint-free cloth. Ensure the power to the fixture is off and the bulb has cooled down before cleaning. Do not use liquid cleaners or abrasive materials.
- Replacement: When the bulb reaches the end of its useful life (indicated by flickering, dimming, or failure to light), replace it following the installation instructions in Section 4. Always replace with a bulb of the same type and wattage for best performance.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light | No power to fixture | Check circuit breaker/fuse. Ensure fixture switch is ON. |
| Bulb does not light | Bulb not properly seated | Turn off power. Re-seat the bulb firmly in the lampholders. |
| Bulb does not light | Defective bulb | Replace with a new, known-good bulb. |
| Bulb does not light | Defective fixture/ballast | If a new bulb also fails to light, the fixture or its ballast may be faulty. Consult a qualified electrician. |
| Bulb flickers or hums | Bulb nearing end of life | Replace the bulb. |
| Bulb flickers or hums | Improper installation | Turn off power. Re-seat the bulb firmly. |
| Bulb flickers or hums | Incompatible or failing ballast | Ensure ballast is compatible with T5 bulbs. If issues persist, ballast may need replacement by a qualified electrician. |
8. Specifications
| Attribute | Value |
|---|---|
| Brand | Sylvania |
| Model Number | FP21/841/ECO (20924) |
| Light Type | Fluorescent |
| Wattage | 21 Watts |
| Bulb Shape Size | T5 |
| Color Temperature | 4100 Kelvin |
| Color Rendering Index (CRI) | 85 |
| Initial Lumens | 2100 |
| Mean Lumens | 1953 |
| Average Rated Life | 20,000 Hours |
| Length | 34 inches |
| Special Feature | Energy Efficient |
| Item Package Quantity | 1 |
9. Disposal Information
This fluorescent bulb contains a small amount of mercury. Due to environmental regulations, it should not be disposed of in regular household waste. Please recycle this bulb according to local, state, and federal regulations. Many retailers and local waste management facilities offer recycling programs for fluorescent lamps. For more information on recycling, please visit www.epa.gov/cfl or contact your local waste authority.
10. Warranty & Support
For information regarding the product warranty, please refer to the documentation provided with your purchase or visit the official Sylvania website. If you require technical support or have questions not covered in this manual, please contact Sylvania customer service through their official channels.