1. Overview
This manual provides instructions for the installation, operation, and maintenance of your Goandwin 12W T4 5.5-inch Circular Fluorescent Replacement Bulb. This bulb is designed as a direct replacement for specific Conair makeup mirror models, ensuring proper illumination for your vanity needs.

Image 1.1: The Goandwin 12W T4 5.5-inch Circular Fluorescent Replacement Bulb. This image shows the circular fluorescent bulb with its 4-pin G10q base, indicating its design for specific mirror applications.
2. Safety Information
- Always disconnect power to the mirror or fixture before attempting to install or replace the bulb.
- Handle the fluorescent bulb carefully. Avoid dropping or striking it, as this can cause breakage.
- Do not attempt to modify the bulb or its connector.
- Ensure the bulb is securely seated in the fixture before restoring power.
- If the bulb breaks, follow local guidelines for fluorescent lamp disposal due to mercury content.
3. Product Compatibility
This replacement bulb is specifically designed for Conair makeup mirror models that utilize a 5.5-inch outer diameter (OD) T4 circular fluorescent bulb with a 4-prong G10q type base where the prongs face inwards. Compatible models include, but are not limited to:
- Conair BE122
- Conair BE121
- Conair BE116TX
Before installation, verify the size and connector type of your existing bulb to ensure compatibility.

Image 3.1: Visual representation of the 5.5-inch outer diameter of the circular fluorescent bulb. This image helps users confirm the correct size for their mirror.

Image 3.2: Close-up of the 4-pin G10q base. This image highlights the specific connector type, which is crucial for ensuring proper fit and function.
Video 3.1: This video demonstrates the different sizes of T4 12W 6400K circular fluorescent bulbs, emphasizing the importance of selecting the correct 5.5-inch outer diameter for compatibility.
4. Setup and Installation
Follow these steps to safely replace the fluorescent bulb in your Conair makeup mirror:
- Disconnect Power: Unplug the makeup mirror from the electrical outlet to prevent electric shock.
- Access Bulb Compartment: Refer to your Conair mirror's original manual for specific instructions on how to open the bulb compartment. This usually involves removing a cover or twisting a section of the mirror.
- Remove Old Bulb: Carefully grasp the old circular fluorescent bulb. Gently twist or pull it straight out from its socket. Note the orientation of the 4-prong connector.
- Insert New Bulb: Align the 4-prong G10q base of the new Goandwin bulb with the socket in the mirror. Ensure the prongs are facing inwards as shown in the product images. Gently push the bulb into the socket until it is firmly seated. Do not rotate the bulb beyond 60 degrees during insertion to avoid damage.
- Secure Compartment: Replace any covers or sections removed in step 2, ensuring they are securely fastened.
- Restore Power: Plug the makeup mirror back into the electrical outlet.
- Test Functionality: Turn on the mirror's light to confirm the new bulb is working correctly.
Video 4.1: This video demonstrates the process of removing and installing a 5.5-inch T4 type replacement bulb for a Conair makeup mirror, showing the correct handling and insertion technique.
Video 4.2: A detailed video showing the replacement of a 5.5-inch 12W bulb for Conair models BE116, BE121, and BE122, illustrating the steps for a successful bulb exchange.
5. Operating Instructions
Once installed, operate the Goandwin replacement bulb using the standard power switch on your Conair makeup mirror. The bulb will provide 6400K daylight white illumination, ideal for makeup application and grooming.

Image 5.1: The circular fluorescent bulb illuminated, demonstrating its light output. This image shows the bulb in an active state, providing bright, even light.
6. Maintenance
- Cleaning: Ensure the mirror is unplugged and the bulb is cool before cleaning. Wipe the bulb gently with a soft, dry, lint-free cloth. Do not use liquid cleaners directly on the bulb.
- Handling: Avoid touching the glass part of the bulb with bare hands, as oils can reduce bulb life. If touched, wipe with a clean cloth.
- Storage: If storing a spare bulb, keep it in its original packaging in a cool, dry place to protect it from damage.
7. Troubleshooting
Bulb Does Not Light Up
- Check Power: Ensure the mirror is properly plugged into a working electrical outlet.
- Secure Connection: Verify that the bulb is fully and correctly seated in its socket.
- Mirror's Internal Components: If the bulb still does not light up, the issue may not be with the bulb itself. The fluorescent starter or ballast inside the mirror's light fixture might have failed. In such cases, the mirror's internal components may require professional repair or replacement.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Goandwin |
| Model Number | T4 12W 6400K |
| Light Type | Fluorescent |
| Wattage | 12 Watts |
| Bulb Shape Size | T4 |
| Outer Diameter | 5.5 inches (14 cm) |
| Bulb Base | 4-prong G10q (prongs inwards) |
| Color Temperature | 6400 Kelvin (Daylight White) |
| Brightness | 850 Lumens |
| Voltage | 110 Volts (compatible with 100-240V, 50-60Hz) |
| Material | Glass |
| Indoor/Outdoor Usage | Indoor |
9. Warranty and Support
For warranty information or technical support regarding your Goandwin replacement bulb, please refer to the contact information provided with your purchase or visit the official Goandwin website. Keep your purchase receipt as proof of purchase.