Description

The LONGi Hi-MO X10 LR8-66HVDF 645W solar panel is a next-generation photovoltaic module developed to maximize energy production, durability, and operational efficiency. Built using advanced HPBC 2.0 cell technology combined with N-Type TaiRay wafer architecture and 0BB technology, this module delivers outstanding conversion efficiency of up to 23.88%, making it ideal for commercial rooftops, industrial facilities, and utility-scale solar farms.

Its innovative bifacial dual-glass construction enables additional energy generation from reflected sunlight on the rear side of the module, significantly improving total system output and reducing the overall levelized cost of electricity (LCOE). The anti-dust frame design minimizes dust accumulation along the panel edges, helping maintain optimal performance while reducing maintenance requirements in dusty or dry environments.

The LR8-66HVDF is engineered for long-term durability with semi-tempered dual glass, strong mechanical load resistance, and enhanced protection against microcracks and localized overheating. Its low temperature coefficient allows stable performance in high-temperature climates, ensuring consistent energy production throughout changing environmental conditions.

Designed to support modern high-voltage solar systems up to 1500V DC, the module is suitable for large-scale installations seeking high power density and improved installation efficiency. LONGi’s strict quality standards and extended performance warranty further ensure dependable long-term operation and excellent return on investment.

Key Features:

• 645W maximum power output
• Up to 23.88% module efficiency
• Advanced HPBC 2.0 cell technology
• N-Type TaiRay wafer architecture
• Bifacial dual-glass module design
• Anti-dust frame technology
• Improved resistance to microcracks and hotspot formation
• Excellent low-light and high-temperature performance
• Suitable for commercial and utility-scale solar projects
• Long-term reliability with extended power warranty

Technical Highlights:

• Model: LR8-66HVDF-645M
• Cell Configuration: 132 half-cut cells
• Dimensions: 2382 × 1134 × 30 mm
• Weight: 32.5 kg
• Maximum System Voltage: 1500V DC
• Module Efficiency: 23.88%
• Open Circuit Voltage (Voc): 49.62V
• Maximum Power Voltage (Vmp): 40.88V
• Operating Temperature: -40°C to +85°C
• Front Load Capacity: 5400Pa
• Rear Load Capacity: 2400Pa