Product Overview
The OttLite T13330 13-Watt HD OttLite Replacement Bulb is designed to provide TrueColor illumination, ideal for reading, crafting, and office use. This energy-efficient bulb offers low heat and low glare, helping to reduce eyestrain and enhance visual clarity. It is specifically engineered for compatibility with various OttLite lamps, particularly those purchased before 2008 that utilize a magnetic ballast.

Image: OttLite T13330 13-Watt HD OttLite Replacement Bulb in its retail packaging.
Key Features
- TrueColor Illumination: Provides accurate color rendering and clear visibility for fine details.
- Reduced Eyestrain: Features low heat and low glare illumination for comfortable extended use.
- Energy Efficient: Rated to last up to 10,000 hours, offering long-term energy savings compared to conventional bulbs.
- Specific Compatibility: Designed for use as a replacement bulb in specific OttLite lamps, especially those with magnetic ballasts purchased before 2008.

Image: A woman working under an OttLite lamp, illustrating the natural daylight, low glare, and low heat benefits for reduced eyestrain and clear vision.

Image: The OttLite T13330 bulb, emphasizing its long lifespan of up to 10,000 hours and its energy efficiency, equivalent to a 60-watt incandescent bulb.
Compatibility and Identification
This bulb (Type A) is specifically designed for OttLite lamps purchased before January 2008 that use a magnetic ballast. If your lamp was purchased after January 2008 and has an "E" marking on the tube, lamp, or box, you will need a Type E bulb with an electronic ballast, not this Type A bulb.
To confirm compatibility, check if your current bulb measures approximately 7 inches long and if any of the following model numbers are marked at the base of the bulb you are replacing:
- T13330
- OTL13TCB
- T137D0
- T1360A
- T139EZ
- TRS113-CA
- T38J36-CA
- T34J3R
- TRSJ36
- Z23112
- OLPL13TC
- OTL13NATB
- T17113
- OTL13P
- PL13-A-FFP

Image: The OttLite 13-watt Type A replacement bulb, clearly stating its design for lamps purchased before 2008.

Image: The OttLite bulb, detailing the criteria for identifying if this is the correct replacement bulb, including lamp purchase date, bulb length, and specific model numbers.
Installation and Removal
Replacing your OttLite bulb is a straightforward process. Always ensure the lamp is unplugged before attempting to replace the bulb.
Step 1: Unplug the Lamp
For your safety, always unplug the OttLite lamp from the power outlet before beginning any bulb replacement or maintenance.
Video: Official OttLite guide demonstrating the process of unplugging the lamp and preparing for bulb replacement.
Step 2: Remove the Old Bulb
- Carefully tilt the lamp shade upwards to fully expose the bulb.
- Grasp the base of the old bulb firmly. It may be a tight fit.
- Gently wiggle the bulb while pulling it straight out from its socket. Avoid twisting the bulb.
Video: Official OttLite guide demonstrating how to remove the old bulb from the lamp by firmly pulling it straight out.
Step 3: Install the New Bulb
- Take your new OttLite T13330 replacement bulb and hold it by its plastic base.
- Align the pins on the bulb's base with the corresponding slots in the lamp's socket.
- Push the bulb firmly into the socket until you hear a click, indicating it is securely in place.
Video: Official OttLite guide demonstrating the correct method for installing the new replacement bulb into the lamp's socket.
Step 4: Plug In and Test
- Once the new bulb is installed, plug the lamp back into a power outlet.
- Turn on the lamp to ensure the new bulb is functioning correctly.
Video: Official OttLite guide demonstrating how to plug in the lamp and test the newly installed bulb.
Maintenance and Care
The OttLite T13330 bulb is designed for long-lasting performance, with an average life of up to 10,000 hours. No specific maintenance is required for the bulb itself beyond proper handling during installation and replacement.
To ensure the longevity of your OttLite lamp and bulb:
- Avoid touching the glass portion of the bulb directly with bare hands, as oils can reduce its lifespan. Use a clean cloth or gloves if necessary.
- Keep the lamp and bulb free from dust and debris by gently wiping with a soft, dry cloth when the lamp is unplugged and cool.
- Always unplug the lamp before cleaning or moving it.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up after installation. |
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| Bulb flickers or buzzes. |
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Specifications
| Feature | Detail |
|---|---|
| Model Number | T13330 |
| Wattage | 13 Watts |
| Light Output (Brightness) | 600 Lumens |
| Color Temperature | 5500 Kelvin (Natural Daylight) |
| Voltage | 120 Volts |
| Bulb Type | Compact Fluorescent (CFL), Type A |
| Average Lifespan | Up to 10,000 hours |
| Incandescent Equivalent | 60 Watts |
| Dimensions | Approximately 0.5"W x 0.9"H (Bulb Diameter 0.5 Inches) |
| Material | Copper |
Warranty and Support
The OttLite T13330 13-Watt HD OttLite Replacement Bulb comes with a 1-year limited warranty from the date of purchase. This warranty covers defects due to workmanship or materials.
For warranty claims or technical support, please contact OttLite customer service. Proof of purchase may be required.
For more information or to explore other OttLite products, visit the OttLite Store.





