HQST HSP100D-30AT
HQST Bifacial 100 Watt 12V Solar Panel Instruction Manual
Brand: HQST
Model: HSP100D-30AT
Introduction
The HQST Bifacial 100 Watt 12V Solar Panel is designed for high efficiency power generation, utilizing advanced bifacial technology to capture sunlight from both sides. This manual provides essential information for the setup, operation, and maintenance of your solar panel to ensure optimal performance and longevity. It is suitable for various off-grid applications including battery charging for boats, caravans, and other remote power needs.
Product Features
- Bifacial Technology: Captures direct sunlight on the front and reflected sunlight (albedo) on the rear, delivering up to 15% more energy output than traditional panels.
- High Efficiency Cells: Features Grade A+ 9-busbar monocrystalline solar cells with up to 25% conversion rate, rigorously tested for durability.
- Enhanced Low-Light Performance: Advanced PERC solar cell technology maximizes energy conversion even in cloudy or low-light conditions. Built-in bypass diodes prevent overheating and ensure performance under partial shading.
- Durable Construction: Rated IP68 for dust and water resistance, with an anti-corrosion aluminum alloy frame. Engineered to withstand 2400 Pa wind resistance and 5400 Pa snow load.

Figure 1: Front and back view of the HQST Bifacial Solar Panel.

Figure 2: Illustration of dual-sided power generation.

Figure 3: Detail of Grade A+ 9-busbar solar cells.

Figure 4: Enhanced low-light performance.

Figure 5: Durability features of the solar panel.
Setup and Installation
Proper installation is crucial for maximizing the energy output of your HQST Bifacial Solar Panel. Consider the following tips:
- Optimal Installation Angle: For best results, set the solar panels at an angle between 20° and 45°. This allows both the front and rear sides to capture maximum sunlight.
- Reflective Surfaces: Install bifacial solar panels on reflective surfaces such as snow (15% reflectivity), cement (10%), sandy land (12%), grass (8%), or white surfaces. Mounting them above the ground helps capture more rear-side sunlight.
- Clear Obstructions: Ensure the panel is free from shadows or obstructions throughout the day, as shading can significantly impact energy output.
- Secure Connections: Use the provided MC4 connectors for secure and waterproof electrical connections.
- Mounting: The panel is compatible with tilt mounting brackets and Z-brackets for easy installation. It features 4 mounting holes for secure attachment.

Figure 6: Panel dimensions and connection points.
Video 1: How to Maximize the Performance of Bifacial Solar Panel. This video provides visual guidance on optimal installation angles and placement for bifacial solar panels.
Video 2: 100W 9BB Bifacial Solar Panels Unboxing. This video demonstrates the unboxing process and initial setup of the solar panel.
Operating Instructions
Once installed, the HQST Bifacial Solar Panel will automatically begin converting sunlight into electrical energy. To ensure continuous and efficient operation:
- Connect to Charge Controller: Always connect the solar panel to a compatible charge controller before connecting to batteries. This protects your batteries from overcharging and ensures stable power delivery.
- Monitor Output: Regularly check the output of your solar panel using a compatible monitoring device to ensure it is performing optimally.
- Adjust for Sun Path: For maximum daily output, consider adjusting the panel's angle periodically to align with the sun's path throughout the day and across seasons.
Maintenance
Minimal maintenance is required for your HQST solar panel due to its durable design. However, regular checks can prolong its lifespan and efficiency:
- Cleaning: Keep the surface of the solar panel clean from dirt, dust, leaves, and snow. Use a soft cloth and water to gently clean the glass surface. Avoid abrasive materials or harsh chemicals.
- Inspect Connections: Periodically check all electrical connections (MC4 connectors, wiring) for any signs of corrosion, damage, or looseness. Ensure they are securely fastened.
- Clear Debris: Remove any accumulated debris around the panel's frame or mounting area that could obstruct airflow or sunlight.
Troubleshooting
If you experience issues with your solar panel's performance, consider the following:
- Low Power Output:
- Check for shading on the panel surface.
- Ensure the panel is angled correctly towards the sun.
- Clean the panel surface if it's dirty.
- Verify all connections are secure and free from corrosion.
- Check the charge controller for error codes or proper operation.
- No Power Output:
- Confirm direct sunlight is hitting the panel.
- Inspect all wiring for disconnections or damage.
- Test the open-circuit voltage (Voc) of the panel directly using a multimeter to ensure it's producing voltage.
Specifications
| Attribute | Value |
|---|---|
| Brand | HQST |
| Model Number | HSP100D-30AT |
| Material | Monocrystalline Silicon, Encapsulation Materials, Aluminum, Junction Box Material |
| Product Dimensions | 38.2"L x 22.7"W x 1.18"H |
| Item Weight | 12.13 Pounds |
| Efficiency | 25% High Efficiency |
| Connector Type | MC4 |
| Maximum Voltage | 12 Volts |
| Maximum Power | 100 Watts |
| UPC | 810009717102 |

Figure 7: Detailed electrical specifications.
Warranty and Support
The HQST Bifacial Solar Panel is a long-lasting investment, delivering powerful energy output for up to 30 years. It comes with a 5-year warranty covering materials and workmanship.
HQST prioritizes product quality and service. We provide a quick response service whenever you encounter any issues during usage. For support, please refer to the contact information provided in your product packaging or visit the official HQST website.

Figure 8: Warranty information.
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