645W Longi Solar Panel LR7-72HVHF-645M

The LONGi LR7-72HVHF-645M 645W Solar Panel is a premium high-efficiency module from the advanced Hi-MO X10 Guardian Series, engineered to deliver maximum energy output, superior reliability, and long-term performance for commercial, industrial, and utility-scale solar installations. Featuring next-generation HPBC 2.0 cell technology, this module provides exceptional power generation, reduced energy losses, and industry-leading efficiency in a durable and lightweight design. 

With a power output of 645W and module efficiency of up to 23.9%, the LR7-72HVHF-645M enables solar system designers to maximize energy production while reducing installation costs and required roof or ground space. The innovative Guardian frame design helps minimize the impact of dust accumulation, improving power generation over the module's lifetime and making it particularly suitable for industrial and commercial rooftops, including color steel roofing and low-angle installations. 

Designed for reliable performance in demanding environments, the LONGi 645W solar panel delivers excellent temperature performance, low degradation rates, and outstanding durability. Its advanced HPBC 2.0 technology helps maintain higher energy yields while ensuring stable operation under harsh weather conditions. 

Key Features

• 645W high-power solar panel for commercial and utility-scale projects. 
• High module efficiency of 23.9% for maximum energy production.
• Advanced HPBC 2.0 cell technology for enhanced performance and reliability.
• Guardian anti-dust frame design helps improve long-term energy yield.
• Excellent low-light and high-temperature performance.
• Less than 1% first-year degradation and only 0.35% annual degradation from years 2 to 30.
• Designed for industrial, commercial, and utility solar installations. 
• Durable tempered glass and anodized aluminum frame construction.
• 15-year product warranty and 30-year linear power output warranty.
• Certified for performance, safety, and long-term reliability.

Technical Specifications

• Model: LR7-72HVHF-645M
• Rated Power (Pmax): 645W
• Module Efficiency: 23.9% 
• Open Circuit Voltage (Voc): 53.80V
• Short Circuit Current (Isc): 15.21A
• Voltage at Maximum Power (Vmp): 44.46V
• Current at Maximum Power (Imp): 14.51A 
• Cell Configuration: 144 Cells (6 × 24)
• Dimensions: 2382 × 1134 × 30 mm
• Weight: 28.5 kg
• Glass Type: 3.2 mm Coated Tempered Glass 
• Maximum System Voltage: 1500V DC
• Operating Temperature: -40°C to +85°C
• Front Static Load: 5400Pa 
• Rear Static Load: 2400Pa 

Applications

The LONGi LR7-72HVHF-645M is ideal for solar farms, commercial buildings, factories, warehouses, agricultural facilities, schools, shopping centres, and large rooftop solar projects where high efficiency, reliability, and long-term energy production are critical.

Why Choose the LONGi LR7-72HVHF-645M?

As a global leader in solar technology, LONGi has developed the Hi-MO X10 Guardian Series to deliver higher efficiency, lower degradation, and greater lifetime energy production. The LR7-72HVHF-645M combines advanced HPBC 2.0 technology, anti-dust frame innovation, and robust construction to provide excellent performance and return on investment for professional solar installations.