Introduction
This manual provides instructions for the proper installation, operation, and maintenance of your OttLite TrueColor 18-Watt Replacement Bulb, model TC00359. This bulb is designed to provide clear, low-glare illumination, reducing eyestrain and enhancing visual clarity for various tasks. Please read these instructions carefully before use.
Setup: Bulb Replacement
Follow these steps to safely replace the bulb in your compatible OttLite lamp:
- Safety First: Ensure the lamp is unplugged from the power outlet and has had sufficient time to cool down if it was recently in use.
- Access Bulb: Depending on your specific OttLite lamp model, you may need to remove a diffuser cover or protective shield to access the bulb. Refer to your lamp's original manual for specific instructions on accessing the bulb compartment.
- Remove Old Bulb: Gently grasp the old bulb and pull it straight out from its socket. Avoid twisting, as this can damage the lamp's pins or the socket. Dispose of the old bulb according to local regulations for fluorescent lamps.
- Install New Bulb: Align the two pins on the base of the new OttLite TrueColor 18-Watt Replacement Bulb with the corresponding holes in the lamp's socket. Carefully push the bulb straight into the socket until it is firmly seated. Do not force the bulb.
- Secure Cover: If a diffuser cover or protective shield was removed, reattach it securely.
- Test: Plug the lamp back into the power outlet and turn it on to ensure the new bulb is functioning correctly.

Image: The OttLite 18-watt TrueColor Replacement Bulb, a tubular fluorescent bulb with a two-pin base, ready for installation.
Operating Instructions
Once installed, the OttLite TrueColor 18-Watt Replacement Bulb operates in conjunction with your OttLite lamp's power switch. Simply use the lamp's integrated switch to turn the light on or off. The bulb provides 180 lumens of bright, clear, and low-glare white light, designed to reduce eyestrain and render colors accurately.
Maintenance
- Cleaning: To clean the bulb, ensure the lamp is unplugged and the bulb is cool. Gently wipe the bulb with a soft, dry, lint-free cloth. Do not use liquid cleaners or abrasive materials.
- Lifespan: This OttLite TrueColor bulb has an average life of approximately 10,000 hours under normal operating conditions.
- Disposal: When the bulb reaches the end of its life, dispose of it responsibly according to local regulations for compact fluorescent lamps (CFLs), as they contain small amounts of mercury. Many retailers and recycling centers offer CFL recycling programs.
Troubleshooting
If your OttLite lamp does not illuminate after replacing the bulb, consider the following:
- No Power:
- Ensure the lamp is securely plugged into a working electrical outlet.
- Check if the outlet is receiving power by testing it with another device.
- Verify that the lamp's power switch is in the "ON" position.
- Bulb Not Seated Correctly:
- Unplug the lamp and allow the bulb to cool.
- Carefully remove the bulb and reinsert it, ensuring the pins are fully and correctly seated in the socket.
- Lamp Malfunction:
- If the new bulb is correctly installed and the power supply is confirmed, the issue might be with the lamp itself (e.g., faulty ballast or wiring). In such cases, contact OttLite customer support or a qualified technician.
Specifications
| Brand | OttLite |
| Model Name | OttLite 18 Watt Replacement Tube (TC00359) |
| Light Type | Compact Fluorescent (CFL) |
| Wattage | 18 Watts |
| Incandescent Equivalent | 72 Watts |
| Brightness | 180 Lumens |
| Bulb Shape Size | A19 (Tubular) |
| Bulb Base | 2-pin (Specific to OttLite lamps) |
| Light Color | White (TrueColor) |
| Special Feature | Low heat, low glare illumination, reduces eyestrain |
| Average Life | 10,000 Hours |
| Product Dimensions | Approximately 5"W x 5"H (Note: Bulb is tubular, dimensions refer to overall package or general form factor) |
| Item Weight | 3.84 ounces |
| UPC | 761712003597 |
Warranty and Support
Specific warranty information for replacement bulbs may vary. Please refer to the original packaging of your OttLite TrueColor 18-Watt Replacement Bulb or visit the official OttLite website for the most current warranty details.
For technical assistance, troubleshooting beyond this manual, or to inquire about warranty claims, please contact OttLite Customer Support:
- Website: www.ottlite.com (Check for support contact information)
- Phone: Refer to the OttLite website or product packaging for current contact numbers.
When contacting support, please have your bulb model number (TC00359) and any relevant purchase information available.







