Introduction
Thank you for choosing WEELMOTO ClassicBlaze H4 9003 Halogen Headlight Bulbs. These bulbs are designed to provide enhanced downroad visibility with minimized glare, ensuring a safer driving experience. This manual provides essential information for the proper installation, operation, and maintenance of your new headlight bulbs.

Image: Two WEELMOTO ClassicBlaze H4 9003 halogen headlight bulbs are shown alongside their retail packaging, highlighting the product's appearance and branding.
Product Features
- Unparalleled Downroad Visibility: Engineered to provide enhanced visibility on the road, allowing drivers to see further ahead and react to potential hazards.
- Anti-glare Design: Minimizes distracting glare for oncoming traffic, contributing to a safer driving environment for everyone.
- Optimal Performance & Long Lifespan: Features a robust filament design and a proprietary gas mixture, ensuring superior performance and extended durability. ClassicBlaze bulbs meet rigorous DOT regulations.
- Consistent Lighting: Designed for symmetrical lighting when both bulbs are replaced simultaneously, ensuring consistent illumination.
- Effortless DIY Installation: Direct replacements for factory bulbs, designed for quick and hassle-free installation without modifications.

Image: A vehicle is shown driving at night, with its headlights providing clear and bright illumination of the road, illustrating the enhanced visibility and anti-glare properties of the bulbs.

Image: A close-up of a WEELMOTO ClassicBlaze headlight bulb is positioned in the foreground, with a sleek modern car driving on a road in the background, symbolizing the product's optimal performance and extended lifespan.
Specifications
| Attribute | Detail |
|---|---|
| Brand | WEELMOTO |
| Model Number | GK-H4 |
| Bulb Type | H4 9003 Halogen |
| Voltage | 12 Volts |
| Wattage | 60/55W |
| Brightness | 1650/1000 Lumen |
| Position | Front |
| Item Weight | 2.39 ounces (per pair) |
| Package Dimensions | 3.82 x 3.39 x 1.93 inches |

Image: A detailed view of a headlight bulb properly seated within a vehicle's light housing. A Department of Transportation (DOT) certification document is also visible, signifying the product's adherence to safety and quality standards.
Installation Instructions
The WEELMOTO ClassicBlaze H4 9003 bulbs are designed for straightforward replacement of your vehicle's existing factory bulbs. Follow these steps for a hassle-free installation:
- Safety First: Ensure your vehicle's engine is off and cool. Disconnect the negative terminal of your car battery to prevent electrical shorts.
- Access the Headlight Assembly: Depending on your vehicle model, you may need to remove certain components (e.g., air intake, battery cover) to gain access to the back of the headlight assembly. Consult your vehicle's owner's manual for specific instructions.
- Disconnect Wiring Harness: Carefully unplug the electrical connector from the back of the old headlight bulb.
- Remove Old Bulb: Unclip or twist the retaining spring/clip that holds the bulb in place. Gently pull the old bulb straight out from the headlight housing.
- Handle New Bulb with Care: When handling the new WEELMOTO bulb, do not touch the glass portion with bare hands. Oils from your skin can create hot spots on the glass, leading to premature failure. Use clean gloves or a cloth to hold the bulb by its base.
- Insert New Bulb: Align the tabs on the base of the new bulb with the notches in the headlight housing. Gently push the bulb straight into the socket until it is fully seated.
- Secure Bulb: Re-engage the retaining spring/clip to firmly hold the new bulb in place.
- Reconnect Wiring: Plug the electrical connector back onto the new bulb.
- Test Functionality: Reconnect your car battery's negative terminal. Turn on your vehicle's headlights (low beam and high beam) to ensure both new bulbs are functioning correctly.
- Reassemble: Reinstall any components that were removed to access the headlight assembly.

Image: A gloved hand is shown holding a WEELMOTO headlight bulb, positioned near a vehicle's headlight assembly, demonstrating the ease of installation.

Image: A person's hand is depicted in the process of installing a headlight bulb into the designated housing of a car, illustrating the practical steps involved in the installation.
Operating Characteristics
Once installed, your WEELMOTO ClassicBlaze H4 9003 bulbs will provide reliable and consistent illumination. These bulbs are designed for both high beam and low beam functions, offering clear visibility in various driving conditions.
- High Beam: Provides maximum illumination for open road driving where no oncoming traffic is present.
- Low Beam: Offers sufficient light for city driving and when encountering other vehicles, designed to prevent glare.

Image: Multiple cars are shown driving on a winding road during nighttime, with their headlights brightly illuminating the path, demonstrating the superior downroad visibility provided by the bulbs.
Maintenance
To ensure optimal performance and longevity of your WEELMOTO ClassicBlaze bulbs, consider the following maintenance recommendations:
- Paired Replacement: For consistent illumination and maximum safety, it is highly recommended to replace both headlight bulbs simultaneously. Bulbs are designed to have similar lifespans, and replacing them in pairs ensures symmetrical lighting and avoids one bulb failing shortly after the other.
- Cleanliness: Periodically inspect your headlight lenses for dirt, grime, or haze. Clean them with a suitable automotive lens cleaner to ensure maximum light output.
- Avoid Contamination: As mentioned in installation, always handle bulbs by their base or with clean gloves to prevent oil residue from affecting bulb life.

Image: Two headlight bulbs are depicted side-by-side; one is accompanied by a full battery icon, and the other by an empty battery icon. This visual emphasizes the recommendation to replace both bulbs at the same time to maintain consistent lighting and performance.
Troubleshooting
If you encounter issues with your WEELMOTO ClassicBlaze headlight bulbs, consider the following common troubleshooting steps:
- Bulb Not Lighting Up:
- Check the electrical connection to ensure it is firmly seated.
- Inspect the fuse for the headlight circuit in your vehicle's fuse box. Replace if blown.
- Verify that the bulb is correctly seated in the headlight housing and the retaining clip is secure.
- If only one bulb is out, consider swapping it with the working bulb (if safe to do so) to determine if the issue is with the bulb or the vehicle's wiring/socket.
- Dim or Flickering Light:
- Check for loose connections at the bulb socket or wiring harness.
- Inspect the vehicle's battery and charging system. Low voltage can cause dim lights.
- Ensure the headlight lens is clean and free of haze or oxidation.
- Premature Burnout:
- Ensure the bulb's glass was not touched during installation.
- Inspect vehicle wiring for any suspected issues that might cause voltage spikes or inconsistent power supply. Consult a professional mechanic if wiring issues are suspected.
- Verify the correct bulb type (H4 9003, 12V, 60/55W) was installed for your vehicle.
If these steps do not resolve the issue, it is recommended to consult a qualified automotive technician.
Warranty and Support
WEELMOTO stands behind the quality of its products. For any questions, concerns, or warranty inquiries regarding your ClassicBlaze H4 9003 headlight bulbs, please contact WEELMOTO customer support directly.
If you need to return the product for any reason after receiving it, please contact WEELMOTO directly by clicking on the "WEELMOTO" brand link on the product page and then selecting "ask a question" to avoid incurring additional charges and to facilitate a smooth process.
For further assistance, please visit the official WEELMOTO store on Amazon: WEELMOTO Store.





