400 Watt Solar Panel: Precision Size for Maximum Efficiency

1. Product Overview

Engineered for high-performance photovoltaic applications, our 400 watt solar panel delivers reliable power output in a compact and versatile form factor. Understanding the size of 400 watt solar panel is essential for seamless integration into diverse installations, whether on commercial rooftops, ground-mounted arrays, or industrial setups. Typically measuring 1722 mm x 1134 mm x 30 mm, this standard dimension balances optimal energy yield with ease of handling and transport, making it a preferred choice for international trade and large-scale projects.

Featuring advanced monocrystalline PERC technology, the panel achieves up to 21.3% efficiency, ensuring superior performance even in low-light conditions. The size of 400 watt solar panel has been refined through years of R&D to maximize module surface area while minimizing weight at just 20.5 kg. This design not only facilitates efficient logistics across global supply chains but also supports high-density packing, reducing shipping costs for B2B buyers. Ideal for off-grid systems, utility-scale farms, and hybrid energy solutions, our panels undergo rigorous testing to meet IEC 61215 and IEC 61730 standards, guaranteeing long-term durability and a 25-year linear power warranty.

In the competitive landscape of renewable energy, selecting the right size of 400 watt solar panel directly impacts project ROI. Our model offers a perfect synergy of power density and footprint, enabling installers to achieve higher kilowatt-per-square-meter ratios without compromising on structural integrity or aesthetic appeal.

2. Key Features

• Optimized Dimensions: Standard size of 400 watt solar panel at 1722 x 1134 x 30 mm for easy mounting and maximum array yield.
• High-Efficiency PERC Cells: Monocrystalline cells with multi-busbar design for reduced resistance and enhanced low-irradiance performance.
• Robust Frame: Anodized aluminum alloy frame with 30 mm thickness, resistant to corrosion, hail, and wind loads up to 5400 Pa.
• Advanced Encapsulation: Tempered glass with anti-reflective coating and EVA lamination for superior PID resistance and UV stability.
• Junction Box: IP68-rated with bypass diodes, supporting multiple cable configurations for flexible system integration.
• Temperature Coefficient: -0.35%/°C for Pmax, ensuring stable output in hot climates.
• Certifications: TUV, UL, CE, and Salt Mist & Ammonia certified for global deployment.

3. Technical Specifications

All specifications are measured under STC (Standard Test Conditions: AM 1.5, 1000 W/m², 25°C). The size of 400 watt solar panel ensures compatibility with most racking systems, including east-west configurations for bifacial variants.

4. Application Scenarios

The versatile size of 400 watt solar panel makes it suitable for a wide array of B2B applications. In commercial and industrial rooftops, its compact footprint allows for high-capacity installations without exceeding load limits, ideal for warehouses, factories, and office buildings seeking to offset peak demand.

For utility-scale solar farms, the standardized dimensions facilitate automated assembly lines and efficient land use, supporting MW-scale deployments with minimal shading losses. Off-grid solutions, such as remote telecom towers or mining operations, benefit from the panel's lightweight design and robust build, enabling quick setup in harsh environments.

Residential and agricultural projects also leverage this size of 400 watt solar panel for ground mounts or carports, where space optimization is key. In hybrid systems paired with batteries or diesel generators, it provides consistent power during variable weather, enhancing energy independence for international exporters and importers alike.

5. Advantages

Our 400 watt solar panel stands out due to its precisely engineered size of 400 watt solar panel, which offers several competitive edges. Firstly, the 1722 x 1134 mm layout maximizes active cell area, delivering higher power per unit footprint compared to larger, less efficient modules. This translates to 15-20% more energy harvest in space-constrained projects.

Superior thermal management via the low temperature coefficient minimizes derating in high-ambient conditions, ensuring reliable performance across global climates from deserts to temperate zones. The anti-PID and salt-mist resistance extends lifespan in coastal or agricultural settings, reducing O&M costs.

Furthermore, the size of 400 watt solar panel supports container optimization—up to 660 panels per 40' HQ—lowering freight expenses for bulk orders. With half-cut cell technology reducing micro-cracks by 80%, downtime is minimized, backed by EL-tested quality control for zero-defect shipments.

6. Why Choose Us

As a leading manufacturer with over 15 years in photovoltaic production, we specialize in high-quality 400 watt solar panels tailored to the exact size of 400 watt solar panel demanded by global markets. Our state-of-the-art Tier 1 facilities produce 5 GW annually, adhering to ISO 9001, ISO 14001, and OHSAS 18001 standards.

We offer customizable solutions, including black-frame aesthetics or transparent BISTM options, without altering core dimensions. Full traceability via serial numbers and third-party inspections ensures compliance for anti-dumping regulations. Our dedicated export team handles logistics, documentation, and financing, making us the trusted partner for EPC firms, distributors, and developers worldwide.

Choosing us means accessing bankable warranties, competitive MOQs, and R&D collaboration for next-gen efficiencies, all centered around the proven size of 400 watt solar panel that drives project success.

7. FAQ

Q: What is the exact size of 400 watt solar panel?
A: The standard size of 400 watt solar panel is 1722 mm in length, 1134 mm in width, and 30 mm in height, providing an ideal balance of power and portability.

Q: Is this size compatible with existing mounting systems?
A: Yes, it aligns with major rail systems like Schletter, Unirac, and IronRidge, supporting both portrait and landscape orientations.

Q: How does the size affect shipping and installation?
A: The compact size of 400 watt solar panel allows for 35 panels per pallet and efficient palletizing, reducing labor and transport costs by up to 25%.

Q: Can the size be customized?
A: While we adhere to industry-standard dimensions for the size of 400 watt solar panel, minor adjustments are available for high-volume OEM orders.

Q: What is the power tolerance for this panel?
A: ±3 Wpp, with actual output often exceeding 400 W under real-world conditions.

Q: Are these panels suitable for high-wind areas?
A: Absolutely, certified for 2400 Pa snow and 5400 Pa wind loads, making the size of 400 watt solar panel robust for extreme weather.