620W Longi Solar Panel (Hi‑MO 7 LR7‑72HGD‑620M)

The 620W LONGi Solar Panel (Hi‑MO 7 LR7‑72HGD‑620M) is a high‑performance bifacial photovoltaic module designed for utility‑scale, commercial, and large residential solar installations. Built using LONGi’s advanced HPDC cell technology and dual‑glass construction, this panel delivers exceptional energy yield, long‑term reliability, and industry‑leading efficiency.

With a maximum module efficiency of up to 23.0%, the 620W LONGi solar panel is engineered to maximize power output per square meter, making it ideal for projects where space, performance, and lifetime value are critical.

High Power Output and Energy Yield

This module offers a rated power output of 620 watts under standard test conditions, with a 0–3% positive power tolerance to ensure guaranteed performance. Its bifacial design provides additional rear‑side power generation, enabling higher total energy production when installed on reflective surfaces.

The low temperature coefficient and half‑cell design reduce power loss in high‑temperature environments and improve overall system stability.

Advanced Bifacial Dual‑Glass Design

The dual‑glass structure enhances durability and resistance to moisture, salt mist, sand, and harsh environmental conditions. With a bifaciality factor of 80% ±5%, the panel is capable of capturing reflected light from the rear side for increased system yield.

This makes the 620W LONGi Hi‑MO 7 panel well suited for ground‑mounted, tracker, and large rooftop installations.

Long‑Term Reliability and Warranties

LONGi’s lifecycle quality assurance ensures dependable performance over decades. The module includes:

• 12‑year warranty for materials and workmanship
• 30‑year linear power output warranty with less than 1% first‑year degradation and only 0.4% annual degradation from year 2 to 30

This guarantees stable energy production and strong return on investment over the system’s lifespan.

Electrical and Mechanical Specifications (Key Highlights)

• Rated Power: 620W
• Module Efficiency: Up to 23.0%
• Cell Configuration: 144 half‑cells (6 × 24)
• Glass: Dual semi‑tempered glass (2.0 + 2.0 mm)
• Frame: Anodized aluminum alloy
• Dimensions: 2382 × 1134 × 30 mm
• Weight: 33.5 kg
• Maximum System Voltage: DC 1500V
• Operating Temperature Range: −40°C to +85°C
• Front Load Capacity: 5400 Pa
• Rear Load Capacity: 2400 Pa

Certified Quality and Safety

The 620W LONGi solar panel complies with international standards, including IEC 61215, IEC 61730, and UL 61730. Manufacturing follows ISO 9001, ISO 14001, and ISO 45001 certified processes, ensuring consistent product quality and safety.

Ideal Applications

• Utility‑scale solar power plants
• Commercial and industrial rooftops
• Large residential solar systems
• Ground‑mounted and tracking solar installations

The 620W LONGi Solar Panel combines high efficiency, proven durability, and long‑term performance, making it a trusted solution for modern solar energy projects requiring maximum output and reliability