Product Description: LONGi LR7-72HVH 635M Solar Panel

The LONGi LR7-72HVH 635M solar panel represents a pinnacle in solar technology, engineered to deliver premium energy output and reliable durability for commercial and industrial solar applications. With an impressive maximum power of 635 watts and a high module efficiency of 23.5%, this solar module offers a robust solution for maximizing clean energy production while reducing installation footprint and operational costs.

Powerful Performance with High Efficiency

The LR7-72HVH 635M is designed to generate 635 watts of power at standard test conditions (STC), delivering reliable and consistent electricity output for a wide range of solar projects. Its 23.5% module efficiency ranks among the highest in the industry, thanks to the innovative BC-Cell (Back Contact) technology that minimizes shading losses and optimizes light absorption.

By concentrating electrical contacts on the rear of the cells, the back contact design allows more sunlight to reach the active area, significantly boosting the panel’s energy conversion capability. This design not only enhances power generation but also improves aesthetic appeal with a clean, unobstructed front surface.

Advanced Cell and Wafer Technology

The LR7-72HVH 635M integrates TaiRay wafers and advanced BC-Cell technology to create a high-quality solar cell that delivers superior performance even under challenging conditions. The TaiRay wafer technology is known for its excellent crystalline structure and electrical properties, which contribute to higher electron mobility and lower recombination losses.

This synergy of wafer quality and back contact cell architecture results in a solar panel that performs exceptionally well in low-light environments and maintains efficiency at elevated temperatures, ensuring dependable energy production throughout the year.

Durable Construction for Long-Term Reliability

Engineered for durability, the LR7-72HVH 635M features a 3.2mm thick coated tempered glass that offers superior resistance to impact, weathering, and environmental stressors such as hail and heavy winds. The anodized aluminum alloy frame ensures structural rigidity, capable of withstanding front-side static loads up to 5400 Pa and rear-side loads of 2400 Pa.

Measuring 2382 × 1134 × 30 mm and weighing just 28.5 kg, this solar module strikes an optimal balance between lightweight design and mechanical strength, facilitating easier transportation and installation on various mounting systems.

Comprehensive Certifications and Warranty

LONGi guarantees the quality and longevity of the LR7-72HVH 635M through rigorous international certifications and comprehensive warranties. This panel complies with IEC 61215 and IEC 61730 standards, UL 61730 certification, as well as ISO9001, ISO14001, and ISO45001 certifications, ensuring adherence to the highest quality, environmental, and safety management practices.

The product is backed by a 15-year warranty covering materials and workmanship and a 30-year linear power output warranty that guarantees less than 0.35% annual degradation after the first year, reinforcing LONGi’s commitment to delivering reliable, high-performance solar solutions.

Superior Operational Parameters

This solar panel performs reliably over a broad temperature range (-40°C to +85°C), with a nominal operating cell temperature (NOCT) around 45±2°C. Its temperature coefficients are finely tuned for excellent performance stability: +0.05%/°C for short-circuit current (Isc), -0.20%/°C for open-circuit voltage (Voc), and -0.26%/°C for maximum power output (Pmax).

Such thermal resilience enables the panel to maintain high efficiency and power output even in hot climates, ensuring consistent energy harvesting year-round.

Bifacial Design for Enhanced Energy Yield

The LR7-72HVH 635M incorporates bifacial technology, allowing it to capture solar radiation from both the front and rear surfaces. This feature can increase energy generation by up to 25%, especially when installed over reflective surfaces such as white roofs, concrete, or sand.

The bifacial design also contributes to lower operating temperatures, enhancing panel longevity and system reliability while maximizing energy harvest potential in commercial installations.

Installation and System Compatibility

The module features an IP68-rated junction box with three bypass diodes, protecting the panel from shading and potential hotspots by enabling smooth current flow. Its output cables, typically 4mm² with customizable lengths, allow flexible installation and connection to solar inverters.

Supporting a maximum system voltage of 1500 V DC and a series fuse rating of 25 A, the LR7-72HVH 635M facilitates larger, more efficient solar system designs with reduced wiring and balance-of-system costs.

Commitment to Sustainability

LONGi’s environmentally responsible manufacturing approach is reflected in this panel’s ISO14001 environmental management certification. The LR7-72HVH 635M not only reduces carbon emissions by generating clean solar power but is also produced with minimal environmental impact, supporting global sustainability goals.

Summary

The LONGi LR7-72HVH 635M solar panel stands out as a highly efficient, durable, and reliable solar module tailored for commercial and industrial solar power systems. Its 635-watt output, backed by advanced BC-Cell technology and TaiRay wafer quality, delivers superior performance with a smaller footprint. Rugged construction, comprehensive certifications, and industry-leading warranties ensure long-term dependability. Ideal for large-scale solar projects, this panel maximizes energy yield and lowers operational costs, driving the transition toward sustainable energy worldwide.

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