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The LONGI Hi-MO X10 LR7-72HVD-645M (645 W) solar cell is a highly efficient bifacial solar module with double glass, combining ultra-high power, reliability and cutting-edge innovation. The use of the latest BC-CELL technology and advanced TaiRay silicon wafers ensures the highest generation efficiency, minimal degradation and excellent performance even in high temperature conditions. This model is an ideal choice for industrial and commercial rooftop solar power plants.
Main advantages of the LONGI Hi-MO X10 645W photovoltaic module
- Extreme efficiency: The efficiency of the 645W model is 23.9%, which guarantees maximum return on each square meter of area.
- Bifaciality: The bifaciality coefficient is 70±5%. The ability to collect reflected light with a transparent back side provides significant additional energy generation.
- Innovative BC-CELL cells: Provide a significantly lower operating temperature of the module, which minimizes generation losses on hot summer days.
- Ultra-strong double glass: Front and rear semi-tempered glass with a thickness of 2.0 mm make the panel as durable and resistant to environmental influences as possible.
- Premium warranty: The manufacturer provides a 15-year full warranty on materials and workmanship and an extended 30-year warranty for the preservation of additional linear output power.
Detailed technical specifications (STC)
Optimum electrical parameters make the LONGI module LR7-72HVD-645M is an ideal choice for modern high-power grid and hybrid inverters.
- Maximum Power (Pmax): 645 W
- Open Circuit Voltage (Voc): 53.70 V
- Short Circuit Current (Isc): 15.17 A
- Maximum Power Voltage (Vmp): 44.56 V
- Maximum Power Current (Imp): 14.48 A
- Output Power Tolerance: 0 ~ +3% (guaranteed positive deviation)
- Temperature Coefficient Pmax: -0.260%/°C (excellent indicator for stable operation in summer heat)
- Maximum system voltage: 1500 V DC (IEC/UL)
- Maximum series fuse rating: 30 A
Mechanical parameters and design
- Type and number of photocells: BC technology, 144 cells (6 × 24).
- Overall dimensions: 2382 × 1134 × 30 mm.
- Module weight: 33.5 kg.
- Frame: Anodized aluminum alloy.
- Junction box: Protection class IP68 (completely waterproof and dustproof), contains 3 diodes.
- Connection cable: Cross section 4.0 mm², standard length +400 mm / -200 mm (or ±1400 mm on request).
- Mechanical load: Withstands frontal maximum static load up to 5400 Pa (snow) and rear load up to 2400 Pa (wind). Successfully passed the hail test (withstands hailstones of 25 mm at a speed of 23 m/s).
Minimal degradation for maximum profit
By investing in LONGI Hi-MO X10 solar panels, you get a station that will operate with maximum efficiency for decades. Thanks to TaiRay plate technology, the panel has an extremely low degradation rate. In the first year of operation, the power loss is less than 1%. Starting from the 2nd to the 30th year, the annual power reduction does not exceed 0.35%. This means that after 30 years of continuous operation, the panel is guaranteed to retain at least 88.85% of its initial generation.
Service support in Ukraine
Total-Energo LLC offers a comprehensive solution: design, equipment selection, installation and professional maintenance of solar power plants based on LONGI panels. We provide full service support and help you maximize the potential of your energy system in Ukraine.
Compatibility with charge controllers and inverters
- Works perfectly as part of hybrid systems with Victron Energy based on MultiPlus and Quattro inverters + SmartSolar MPPT RS 450/100 and 450/200 controllers for high-power projects, as well as SmartSolar 250/60, 250/70, 250/85, 250/100 controllers.
- Absolute compatibility with modern grid-connected inverters (voltage up to 1500 V DC). We strongly recommend Fronius inverters from