- At 24.2% efficiency, this panel is 0.9pp above typical N-type 650-700W modules (median: 23.3%)
- Power density of 242.5 W/m² packs 10.0 W/m² more into the same footprint vs N-type 650-700W median (232.5 W/m²)
- -0.26%/°C temperature coefficient (median: -0.29%/°C) - retains ~1% more power at high temperatures
- 70% bifaciality enables rear-side power generation, boosting yield by 4-10% on reflective surfaces
- Ranked #128 out of 11672 panels for efficiency in the database
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Series Hi-MO X10 Scientist (LR7-72HVD 640~665M) 6 variants
Longi Solar Hi-MO X10 Scientist (LR7-72HVD 640-665M) is designed to maximize energy yield where every square meter counts and production predictability is key. Its foundation is HPBC 2.0 back-contact technology, an architecture with contacts moved to the rear side—eliminating front-side metal pathways that hinder light absorption. In practice, this translates to better real-world performance, not just in the lab.
A key advantage is the built-in shading optimizer, which minimizes losses when shade from a chimney, branch, or rooftop installation falls on the panel. Additionally, the 0BB (zero busbar) structure efficiently collects current and enhances aesthetics, often a crucial factor in visible rooftop installations. The applied multilayer structure helps utilize light more effectively and stabilize long-term performance.
This is an excellent choice for demanding rooftop systems, commercial installations, and C&I projects where resilience to partial shading and high module efficiency are significant advantages.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 655 Wp |
| Module Efficiency | 24.20% |
| Voltage at Max Power (Vmpp) | 44.97 V |
| Current at Max Power (Impp) | 14.57 A |
| Open Circuit Voltage (Voc) | 54.32 V |
| Short Circuit Current (Isc) | 15.22 A |
| Max System Voltage | 1500 V |
Temperature Coefficients
| Temp. Coeff. Pmax | -0.260%/°C |
| Temp. Coeff. Voc | -0.200%/°C |
| Temp. Coeff. Isc | 0.050%/°C |
| NOCT | 45°C |
Cell Technology
| Cell Type | Monocrystalline |
| Cell Count | 144 |
| Bifacial | Yes |
| Bifaciality Factor | 70% |
Dimensions & Weight
| Length | 2382 mm |
| Width | 1134 mm |
| Height | 30 mm |
| Weight | 33.5 kg |
| Area | 2.70 m² |
| Power Density | 242.5 Wp/m² |
Warranty
| Product Warranty | 15 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 88.8% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.35%/year |