Key Features & Benefits
- High Efficiency: Achieves up to ~23% module efficiency in upgraded versions.
- HPDC Cell Technology: Hybrid passivated dual-junction cells provide optimized electricity conversion, lower resistive losses, and improved durability.
- Bifacial Power Generation: With a bifacial ratio of ~80%, the module can generate up to ~3% more energy compared to conventional bifacial modules.
- Low Power Degradation: Designed to degrade at only ~0.4% per year, offering a strong long-term performance guarantee.
- Excellent Temperature Performance: Power temperature coefficient of –0.28%/°C, helping maintain high output even under high heat.
- Reduced BOS Costs: Higher power output (~4.5% gain vs. mainstream) means fewer modules needed, saving on racking, inverters, cabling, land, and AC-side equipment.
- Durability & Load Capacity: Built with a 30 mm high-strength aluminum alloy frame, IP68 junction box, and 3 bypass diodes for reliability.
- Mechanical Resilience: Rated for up to 5,400 Pa front-side static load and 2,400 Pa back-side — ideal for harsh weather.
- Robust Warranty: 12-year product warranty and 30-year linear power warranty, backed by LONGi’s quality assurance.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | LR7-72HGD / LR8-66HGD (Hi-MO 7) |
| Maximum Power (Pmax) | ~610 W |
| Module Efficiency | ~22.6% (or up to ~23% in newer versions) |
| Cell Configuration | 144 cells (6×24) |
| Operating Voltage | Vmp ~ 40.51 V (for 610 W version) |
| Temperature Coefficient (Pmax) | –0.28% / °C |
| Module Dimensions | 2278 × 1134 × 30 mm (other versions: 2382 × 1134 mm) |
| Weight | ~31.8 kg |
| Junction Box | IP68, split, 3 diodes |
| Load Capacity | Front: 5,400 Pa · Back: 2,400 Pa · Hail test: 25 mm @ 23 m/s |
| Operating Temperature Range | –40 °C to +85 °C |
Ideal Applications
- Large-scale utility solar farms
- Commercial rooftops (factories, warehouses)
- C&I (commercial & industrial) solar projects
- Ground-mount systems with high reflectivity surfaces
- Projects in hot or high-irradiance areas thanks to excellent temperature coefficient
Why Choose Hi-MO 7?
If you’re looking for a solar module that offers maximum energy yield, long-term reliability, and lower Levelized Cost of Energy (LCOE), the Hi-MO 7 is a top contender. Its advanced HPDC cell design, long warranties, and high bifacial rate mean more power, less degradation, and better returns over decades.





