1. Introduction
Thank you for choosing GOHDLAMP GU10 Dimmable LED Bulbs. These energy-efficient bulbs are designed to provide high-quality, natural white illumination for various indoor applications. This manual provides essential information for safe installation, operation, and maintenance of your new LED bulbs.

Image 1.1: GOHDLAMP GU10 Dimmable LED Bulb. This image shows the main product, a white GU10 LED bulb with its characteristic two-pin base.
2. Safety Information
- Disconnect Power: Always turn off the power supply at the circuit breaker before installing or replacing bulbs.
- Indoor Use Only: These bulbs are designed for indoor use in dry locations. Do not expose to water or moisture.
- Correct Base: Ensure the fixture is compatible with a GU10 base. Forcing the bulb into an incompatible socket may cause damage.
- Operating Temperature: Do not install in enclosed fixtures that restrict airflow, as this can shorten bulb lifespan.
- Dimmer Compatibility: Use only with compatible LED dimmers. Using an incompatible dimmer may cause flickering or damage.
- Disposal: Dispose of used bulbs according to local regulations.
3. Package Contents
Each package contains the following items:
- 6 x GOHDLAMP GU10 Dimmable LED Light Bulbs (4000K Neutral White, 5W)
4. Specifications

Image 4.1: GU10 LED Bulb Product Dimensions. This image displays the bulb with its dimensions: 1.97 inches width and 2.12 inches height, along with key specifications like Wattage (5W), Voltage (AC120V), Lumen (450LM), Beam angle (38°), Dimmable (Yes), Color (4000K), and CRI (80+).
| Feature | Specification |
|---|---|
| Brand | GOHDLAMP |
| Light Type | LED |
| Special Features | Dimmable, Energy Efficient, Eye-Friendly, Flicker-Free, High Efficiency |
| Wattage | 5 Watts |
| Bulb Shape Size | MR16 |
| Bulb Base | GU10 |
| Incandescent Equivalent Wattage | 50 Watts |
| Light Color | Neutral White |
| Voltage | 120 Volts (100-120V, 50Hz) |
| Color Temperature | 4000 Kelvin |
| Brightness | 450 Lumens |
| Shape | MR16 |
| Material | Plastic, Aluminum |
| Indoor/Outdoor Usage | Indoor |
| Color Rendering Index (CRI) | 85.0 |
| Beam Angle | 38 Degrees |
| Average Life | 35000 Hours |
| Product Dimensions | 1.95"W x 0.4"H (Note: This seems to be a partial dimension, refer to Image 4.1 for full dimensions) |

Image 4.2: Product Parameters and Bulb Design. This image shows a detailed view of the GU10 LED bulb alongside a table summarizing its key parameters: Lumens (450), Wattage (5W), Beam Angle (38°), and Lifetime (35,000 hrs).
5. Setup and Installation
Follow these steps to safely install your GOHDLAMP GU10 LED bulbs:
- Turn Off Power: Before beginning installation, ensure the power to the light fixture is completely turned off at the circuit breaker to prevent electrical shock.
- Remove Old Bulb: If replacing an existing bulb, allow it to cool completely. Gently push the old GU10 bulb into its socket and twist counter-clockwise to unlock and remove it.
- Insert New Bulb: Align the two pins of the GOHDLAMP GU10 LED bulb with the two holes in the fixture's socket.
- Secure Bulb: Gently push the bulb into the socket and twist clockwise until it locks securely into place. Do not overtighten.
- Restore Power: Once the bulb is securely installed, restore power at the circuit breaker.
- Test: Turn on the light switch to confirm the bulb is working correctly.

Image 5.1: GU10 LED Bulb vs Halogen Bulb Comparison. This image illustrates the difference between an LED bulb and a halogen bulb, highlighting that a 5W LED bulb is equivalent to a 50W halogen bulb, and LED bulbs run cooler with a longer lifetime.
6. Operating Instructions
These GOHDLAMP GU10 LED bulbs are designed for simple operation:
- Standard Operation: Turn on and off using a standard light switch.
- Dimmable Functionality: These bulbs are dimmable. If your fixture is connected to a compatible LED dimmer switch, you can adjust the brightness from 5% to 100%.
- Light Color: The bulbs provide 4000K Natural White light, suitable for various environments requiring clear and balanced illumination.

Image 6.1: Smooth Dimmability from 5% to 100%. This image demonstrates the bulb's dimming capability, showing light levels from 5% to 100% and indicating compatibility with most dimmers.

Image 6.2: Polychromatic Temperature Comparison. This image visually compares different color temperatures: 2700K Warm White, 4000K Neutral White, and 5000K Cold White, illustrating the specific 4000K output of this product.
7. Maintenance
GOHDLAMP GU10 LED bulbs require minimal maintenance due to their long lifespan and durable construction.
- 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: With an average life of 35,000 hours, frequent replacement is not typically needed. When replacement is necessary, follow the installation steps in Section 5.
8. Troubleshooting
If you encounter issues with your GOHDLAMP GU10 LED bulbs, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Bulb does not light up | No power to the fixture, bulb not properly installed, faulty bulb. | Check circuit breaker. Ensure bulb is securely twisted into the socket. Test with another working bulb. |
| Bulb flickers | Incompatible dimmer switch, loose connection, voltage fluctuations. | Ensure dimmer is LED compatible. Check bulb connection. Consult an electrician if voltage issues are suspected. |
| Bulb is too dim or too bright | Dimmer setting, incorrect bulb for application. | Adjust dimmer switch. Confirm the bulb's lumen output (450LM) is suitable for your needs. |
9. Warranty and Support
GOHDLAMP provides support for its products:
- Warranty: Enjoy a 3-year limited manufacturer's support.
- Customer Service: For any questions or assistance, GOHDLAMP offers a quick response with 24-hour service.
Please contact GOHDLAMP customer support through the retailer's platform or the official GOHDLAMP website for further assistance.

Image 9.1: GOHDLAMP Support Information. This image highlights the 3-year limited manufacturer's support and 24-hour quick response service offered by GOHDLAMP.