LONGi 650W Hi-MO 9 N-type BC Bifacial Dual-Glass Solar Module (LR8-66HVDF-650M)

Product Overview: Powered by LONGi’s revolutionary Hi-MO 9 technical platform and cutting-edge Tera wafers, the LR8-66HVDF-650M is a 650W ultra-high-efficiency N-type BC (Back Contact) bifacial module precision-engineered to master the world's most hostile deployment environments. Characterized by its pioneering "Triple-Proof" architectural fortification, this utility-scale powerhouse delivers uncompromising resistance against high salinity, heavy moisture, and severe micro-cracking dynamics. By removing metal grids from the front surface, it maximizes light absorption to achieve stellar module efficiency. Outfitted with heavy-duty dual-glass encapsulation and exceptional bifaciality gains, it offers unmatched long-term bankability and the lowest Levelized Cost of Energy (LCOE) for coastal arrays, desert layouts, and heavy industrial commercial applications globally.

Parameter	Value
Maximum Power	650 W
Open Circuit Voltage	49.72 V
Short Circuit Current	16.54 A
Maximum Power Voltage	40.98 V
Maximum Power Current	15.86 A
Module Efficiency	24.06%
Power Tolerance	0 ~ +3%

Operating Parameters & System Design

• Maximum System Voltage: 1500V DC (IEC)

• Maximum Series Fuse Rating: 35 A

• Operating Temperature Range: -40°C to +85°C

• Nominal Module Operating Temperature (NMOT): 45±2°C

• Safety Class: Class II

• Fire Rating: IEC Class C

Temperature Coefficients

• Temperature Coefficient of : -0.260% / °C

• Temperature Coefficient of : -0.200% / °C

• Temperature Coefficient of : +0.050% / °C

 Mechanical Specifications

• Cell Orientation: 132 cells (6 × 22)

• Cell Type: N-type wafer with HPBC 2.0 technology (0BB/Zero-Busbar front side)

• Dimensions: 2382 × 1134 × 30 mm

• Weight: ~32.5 kg / 33.5 kg (depending on specific dual-glass thickness configurations)

• Front/Rear Glass: Dual-glass design, highly transparent semi-tempered glass

• Frame: Anodized aluminum alloy; features an Anti-Dust pure flat design on the short frame sides to prevent dirt/mud accumulation.

• Junction Box & Cables: IP68 rated, 4 $mm^2$ solar cables, standard length 400mm / 200mm (or customized length upon project request).

🛡️ Core "Triple-Proof" Performance

• Anti-Salt Spray & Anti-Corrosion : Advanced anti-corrosion edge sealing and specialized chemical-resistant polymer framing make it completely immune to extreme marine environments, making it ideal for coastal projects and floating solar structures.

• Anti-PID & High-Moisture Barrier : Reinforced dual-glass physical isolation completely blocks water vapor entry, guaranteeing near-zero PID (Potential Induced Degradation) even in tropical regions with 90%+ relative humidity.

• Anti-Microcrack & Heavy Dust Load : Combined with LONGi's high-tensile Tera silicon crystal strength, the structural package perfectly withstands heavy sandstorms, mechanical wind loads, and intense pressure without internal cell fracturing.

⚡ Next-Gen N-type BC Technology

• No Grid Lines on the Front: Unlocks 100% full-surface solar capturing. The innovative back-contact grid design achieves industry-leading efficiency and an elegant, minimalist aesthetic.

• Industry-Leading 30-Year Performance Linear Warranty: Features exceptionally low first-year and annual linear degradation rates, fully backed by LONGi’s Tier-1 BloombergNEF (BNEF) global bankability status.