645W Longi Bifacial Solar Panel LR8-66HYD-645M

The LONGi LR8-66HYD-645M 645W Bifacial Solar Panel is a high-performance solar module from the latest Hi-MO 9 Series, engineered to deliver exceptional energy output, industry-leading efficiency, and long-term reliability. Utilizing advanced Back Contact (BC) cell technology and bifacial power generation, this premium solar panel captures sunlight from both the front and rear sides, increasing total energy production and maximizing system returns. 

With a power output of 645W and an impressive module efficiency of 23.9%, the LR8-66HYD-645M is designed for utility-scale solar farms, commercial installations, industrial facilities, agricultural projects, and high-performance rooftop systems. Its bifacial design can generate additional energy from reflected light, helping reduce the levelized cost of electricity (LCOE) and improve overall project profitability. 

Key Features

• 645W high-output solar panel for maximum energy generation.
• Up to 23.9% module efficiency for superior performance. 
• Advanced BC cell technology for higher energy yield and lower operating temperatures. 
• Bifacial design captures sunlight from both sides for increased power production. 
• Durable dual-glass construction for enhanced longevity and weather resistance. 
• Less than 1% first-year power degradation and only 0.35% annual degradation from years 2 to 30.
• Suitable for coastal and high-humidity environments with LONGi Sea-Shield corrosion protection.
• Certified for demanding environmental conditions, including high wind, snow, and hail loads.
• 12-year product warranty and 30-year linear power output warranty. 

Technical Specifications

• Model: LR8-66HYD-645M
• Rated Power: 645W
• Module Efficiency: 23.9%
• Open Circuit Voltage (Voc): 49.62V 
• Short Circuit Current (Isc): 16.46A 
• Voltage at Maximum Power (Vmp): 40.88V
• Current at Maximum Power (Imp): 15.78A 
• Cell Configuration: 132 Cells (6 × 22) 
• Dimensions: 2382 × 1134 × 30 mm
• Weight: 41.6 kg 
• Maximum System Voltage: 1500V DC
• Operating Temperature: -40°C to +85°C

Why Choose the LONGi LR8-66HYD-645M?

The LONGi 645W Bifacial Solar Panel combines cutting-edge solar technology, exceptional efficiency, and proven durability to deliver outstanding performance across a wide range of applications. Its high power output, bifacial energy gains, low degradation rate, and robust dual-glass design make it an excellent choice for businesses, solar developers, EPC contractors, and property owners seeking long-term value and maximum return on investment.