1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your Marsauto M1S 9005/HB3 H11/H8/H9 Light Bulbs Combo. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.

Image 1.1: The Marsauto M1S 9005 H11 Light Bulbs Combo, showing four bulbs and product packaging.
2. Package Contents
Upon opening the package, verify that all components are present and undamaged:
- 2 x 9005 LED Light Bulbs
- 2 x H11 LED Light Bulbs
3. Product Features
The Marsauto M1S Light Bulbs Combo is engineered with advanced technology to provide superior illumination and reliability.
- Enhanced Brightness: Equipped with 7035 Chips, these bulbs deliver an 800% increase in lighting output compared to standard halogen bulbs, offering a wider and farther illumination range for improved visibility.
- High Compatibility: Featuring a built-in intelligent CAN bus system, the bulbs are designed to minimize error messages, flickering, and radio interference issues, achieving almost 100% vehicle compatibility.
- Quick Installation: The M1S bulbs feature a perfect 1:1 design, matching the size of original halogen bulbs, allowing for direct fitment into vehicle sockets without modifications. Installation can be completed in approximately 3 minutes.
- Extended Lifespan: Constructed with a full aluminum body and dual built-in copper pipes for efficient heat dissipation, these bulbs boast an operating life of over 60,000 hours.
- Adjustable Beam Angle: An adjustable snap ring allows for precise adjustment of the light angle to suit different vehicle types and driving preferences, ensuring optimal beam pattern without dark spots or glare for oncoming drivers.
- IP68 Waterproof Rating: The bulbs are designed with IP68 waterproof capabilities, protecting the lighting system from water ingress and ensuring consistent brightness and clarity in various weather conditions.

Image 3.1: Visual comparison demonstrating the significantly brighter and wider light output of Marsauto M1S LED bulbs compared to traditional stock halogen bulbs in a nighttime driving scenario.

Image 3.2: An internal view of the M1S bulb highlighting its integrated CAN bus system, designed to ensure compatibility and prevent dashboard error warnings.

Image 3.3: A visual representation comparing the long lifespan of a single Marsauto M1S LED bulb to the equivalent of 120 standard halogen bulbs.

Image 3.4: An illustration demonstrating the 360-degree adjustable lock ring on the M1S LED bulb, which allows for precise beam pattern alignment.

Image 3.5: A car driving in heavy rain, showcasing the IP68 waterproof rating of Marsauto M1S LED lights, ensuring performance in adverse weather.
4. Installation Guide
Follow these steps for a quick and easy installation. No external driver is required, and the bulbs are non-polarity for simplified setup.
4.1 Pre-Installation Check
Before proceeding with installation, it is crucial to confirm compatibility with your vehicle. These bulbs are designed as a direct replacement for halogen bulbs. Do not install if your vehicle uses HID or LED bulbs from the factory.

Image 4.1: A visual guide demonstrating how to verify vehicle compatibility for the Marsauto M1S bulbs, including checking the stock halogen bulb type.
4.2 Step-by-Step Installation
- Remove Old Bulb: Carefully twist and remove the existing halogen bulb from its housing.
- Insert New LED Bulb: Insert the Marsauto M1S LED bulb into the headlight or fog light socket. Ensure it is seated correctly.
- Connect Power: Connect the power connector to the LED bulb. The plug-and-play design ensures a straightforward connection.

Image 4.2: A three-step visual guide illustrating the simple plug-and-play installation process for Marsauto M1S LED bulbs, from insertion to connection.
The 1:1 design ensures a perfect fit, similar to your original stock bulbs, preventing installation issues.

Image 4.3: A visual comparison of the physical dimensions of a stock halogen bulb, a Marsauto M1S LED bulb, and a generic LED bulb, highlighting the Marsauto's 1:1 design for easy installation.
5. Operation
After installation, you may adjust the beam pattern for optimal performance. The Marsauto M1S bulbs feature a 360-degree adjustable lock ring.
- Beam Adjustment: Gently rotate the bulb within its housing to achieve the desired light angle. This allows for fine-tuning the beam pattern to prevent dark spots and avoid blinding oncoming traffic.
6. Maintenance and Care
The Marsauto M1S LED bulbs are designed for durability and minimal maintenance.
- Longevity: With an estimated lifespan of over 60,000 hours, these bulbs require no regular replacement under normal operating conditions.
- Durability: The full aluminum body and IP68 waterproof rating protect the bulbs from environmental factors such as dust and water, ensuring consistent performance.
- Cleaning: If necessary, gently wipe the bulb's lens with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
7. Troubleshooting
While Marsauto M1S bulbs are designed for high compatibility, certain vehicle systems may present specific challenges.
- Error Messages or Flickering: For a small percentage of vehicles, particularly those with sensitive CAN bus systems, an additional decoder may be required to resolve dashboard error messages or flickering issues. If you encounter these problems, contact Marsauto customer support for assistance.
- Improper Beam Pattern: If the light output appears scattered or has dark spots, adjust the 360-degree lock ring to optimize the beam angle (refer to Section 5: Operation).
- Bulb Not Lighting Up: Ensure all connections are secure and the bulb is correctly seated in the housing. Verify that your vehicle's electrical system is functioning properly.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Marsauto |
| Model | M1S Fog Bulbs |
| Bulb Type | 9005/HB3, H11/H8/H9 |
| Brightness | 48000 Lumen (Total for 4 bulbs) |
| Color Temperature | 6000K Cool White |
| Operating Life | 60,000+ Hours |
| Waterproof Rating | IP68 |
| Voltage | 12 Volts |
| Auto Part Position | Front |
| Automotive Fit Type | Universal Fit (for halogen replacement) |
| Item Weight | 6.7 ounces |
| Package Dimensions | 5.31 x 4.8 x 2.24 inches |
9. Warranty and Support
Marsauto products are manufactured to high-quality standards. For specific warranty information, technical support, or assistance with troubleshooting, please refer to the official Marsauto website or contact their customer service directly. Keep your purchase receipt as proof of purchase.