Internal Reference:
LR8-66HVDF-660M
The LONGi Hi-MO X10 Scientist 660W anti-dust bifacial panel combines N-type TaiRay wafers with HPBC 2.0 back-contact cells and 0BB design for peak efficiency, no frontal gridlines, fewer micro-cracks, anti-shading and protection against localized overheating, plus a patented anti-dust frame that reduces dust accumulation. Dual glass, IP68 junction box, 15-year product and 30-year power warranty.
Technical Specifications
| Module Type | LR8-66HVDF-640M | LR8-66HVDF-645M | LR8-66HVDF-650M | LR8-66HVDF-655M | LR8-66HVDF-660M | LR8-66HVDF-665M |
| Electrical Characteristics (STC: AM1.5 1000W/m² 25℃) | ||||||
| Maximum Power (Pmax/W) | 640 | 645 | 650 | 655 | 660 | 665 |
| Open Circuit Voltage (Voc/V) | 49.52 | 49.62 | 49.72 | 49.82 | 49.92 | 50.02 |
| Short Circuit Current (Isc/A) | 16.38 | 16.46 | 16.54 | 16.62 | 16.70 | 16.78 |
| Voltage at Maximum Power (Vmp/V) | 40.78 | 40.88 | 40.98 | 41.08 | 41.18 | 41.28 |
| Current at Maximum Power (Imp/A) | 15.69 | 15.78 | 15.86 | 15.94 | 16.03 | 16.11 |
| Module Efficiency (%) | 23.69 | 23.88 | 24.06 | 24.25 | 24.43 | 24.62 |
| Test uncertainty for Pmax | ± 3% | |||||
| Mechanical Parameters | ||||||
| Cell Orientation | 132 (6×22) | |||||
| Junction Box | IP68, three diodes | |||||
| Output Cable | 4mm², +400, -200mm/±1400mm, length can be customized | |||||
| Glass | Dual glass, 2.0+2.0mm semi-tempered glass | |||||
| Frame | Anodized aluminum alloy frame | |||||
| Weight | 33.5kg | |||||
| Dimension | 2382×1134×30mm | |||||
| Packaging | 35pcs per pallet / 140pcs per 20’ GP / 700pcs per 40’ HC | |||||
| Operating Parameters | ||||||
| Operational Temperature | -40℃ ~ +85℃ | |||||
| Power Output Tolerance | 0 ~ 3% | |||||
| Maximum System Voltage | DC1500V (IEC) | |||||
| Maximum Series Fuse Rating | 35A | |||||
| Nominal Operating Cell Temperature | 45±2℃ | |||||
| Protection Class | Class II | |||||
| Bifaciality | 75±5% | |||||
| Fire Rating | IEC Class C | |||||
| Mechanical Loading | ||||||
| Front Side Maximum Static Loading | 5400Pa | |||||
| Rear Side Maximum Static Loading | 2400Pa | |||||
| Hailstone Test | 25mm Hailstone at the speed of 23m/s | |||||
| Temperature Ratings (STC) | ||||||
| Temperature Coefficient of Isc | +0.050%/℃ | |||||
| Temperature Coefficient of Voc | -0.200%/℃ | |||||
| Temperature Coefficient of Pmax | -0.260%/℃ | |||||
| Warranty | ||||||
| Materials and Processing | 15-year | |||||
| Linear Power Output | 30-year | |||||
| First year power degradation | <1% | |||||
| Year 2-30 power degradation | 0.35% | |||||