1. Introduction
Thank you for choosing the Brrnoo E27 Brown Glass Retro LED Light Bulb. This manual provides essential information for the safe and effective use of your new LED bulb. Please read these instructions carefully before installation and retain them for future reference.

Image: The Brrnoo E27 Brown Glass Retro LED Light Bulb, showcasing its vintage design and E27 screw base.
2. Safety Information
To ensure safe operation, please observe the following precautions:
- Always turn off the power supply at the main switch before installing or replacing the bulb.
- Do not use this bulb in fully enclosed luminaires, as this may reduce its lifespan.
- This bulb is designed for indoor use in dry locations only.
- Avoid touching the bulb with wet hands.
- Do not disassemble or modify the bulb.
- Handle the glass bulb with care to prevent breakage.
- Ensure the bulb is securely screwed into the socket before restoring power.
3. Product Features
The Brrnoo E27 Brown Glass Retro LED Light Bulb offers several key features:
- Retro Design: Features a classic shape and brown glass for a vintage aesthetic.
- Even Light Distribution: Designed to spread light uniformly without causing eye strain.
- High Transmittance Glass: Brown glass with high light transmittance enhances its vintage appeal.
- Energy Efficient: Utilizes LED technology for low power consumption (2W).
- Versatile Application: Ideal for decorative lighting in restaurants, coffeehouses, bars, and living rooms.

Image: The Brrnoo E27 LED bulb placed on a wooden surface in a cafe-like setting, highlighting its warm glow and suitability for decorative lighting in various environments.
4. Specifications
| Specification | Detail |
|---|---|
| Model Number | YC-E27-2W |
| Bulb Base | E27 |
| Wattage | 2 Watts |
| Light Type | LED (COB Filament) |
| Light Color | Warm White |
| Color Temperature | 2300 Kelvin |
| Luminous Flux | 100 LM/W (approx. 200 lumens total) |
| Voltage | 85-265V |
| Light Angle | 270° |
| Color Rendering Index (CRI) | RA>80 |
| Material | Glass |
| Dimensions (H x W) | Approx. 145 x 60 mm (5.7 x 2.4 inches) |
| Dimming Support | Not Supported |

Image: Diagram showing the approximate dimensions of the Brrnoo E27 LED Light Bulb, with a height of 5.7 inches and a width of 2.4 inches.
5. Setup
Follow these steps to install your LED light bulb:
- Turn off Power: Before installation, ensure the power supply to the light fixture is completely turned off at the circuit breaker or wall switch.
- Remove Old Bulb (if applicable): If replacing an existing bulb, allow it to cool completely before carefully unscrewing it counter-clockwise from the socket.
- Install New Bulb: Gently screw the Brrnoo E27 LED bulb clockwise into the E27 compatible light socket until it is snug. Do not overtighten.
- Restore Power: Once the bulb is securely installed, restore power to the light fixture.

Image: Close-up view of the Brrnoo E27 LED Light Bulb, focusing on the E27 screw base and the brown glass casing.
6. Operating Instructions
Operating the Brrnoo E27 LED Light Bulb is straightforward:
- Power On/Off: Use the standard wall switch connected to your light fixture to turn the bulb on or off.
- No Dimming: This bulb is not designed for use with dimmer switches. Using it with a dimmer may cause flickering or damage the bulb.

Image: The Brrnoo E27 LED Light Bulb illuminated in a dark setting, demonstrating its warm white light output.
7. Maintenance
The Brrnoo E27 LED Light Bulb requires minimal maintenance:
- Cleaning: Ensure the power is off and the bulb is cool before cleaning. Wipe the bulb with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Replacement: When the bulb reaches the end of its lifespan, follow the installation steps in Section 5 to replace it with a new, compatible E27 LED bulb.
8. Troubleshooting
If you encounter issues with your Brrnoo E27 LED Light Bulb, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up. | No power to the fixture, bulb not screwed in properly, or bulb is faulty. | Check power supply, ensure bulb is securely tightened, or try the bulb in another working fixture. |
| Bulb flickers. | Incompatible dimmer switch, loose connection, or voltage fluctuations. | Ensure no dimmer switch is used. Check for loose connections. If flickering persists, consult an electrician. |
| Bulb is too dim. | Incorrect wattage for desired brightness, or voltage issue. | Verify the bulb's wattage meets your lighting needs. Check power supply voltage. |
9. Warranty and Support
Brrnoo products are manufactured to high-quality standards. For specific warranty details, please refer to the purchase documentation or contact your retailer. If you require technical assistance or have questions not covered in this manual, please contact Brrnoo customer support through the retailer's platform or the official Brrnoo website.
Contact Information:
- For support, please visit the Brrnoo Store on Amazon.