Hi-Mo X10 LR8-66HVD 640-665M
The LONGi LR8-66HVD series is a high-performance bifacial dual-glass solar module (640W–665W) engineered for West Africa's intense solar irradiance and extreme heat, making it ideal for Sahel region installations, rural electrification projects, and off-grid solar systems across Mauritania and the ECOWAS zone. Built with advanced BC cell technology and TaiRay wafers, it achieves peak efficiency of 24.6% under STC conditions while delivering exceptional sand and dust resistance—critical for remote, dusty environments in West Africa. The dual-glass bifacial design maximizes energy harvest from both direct and reflected sunlight, supporting microgrid deployments and energy independence initiatives throughout the region. Backed by a comprehensive 30-year warranty, this module provides the reliability and durability needed for long-term solar energy projects across West African and Sahel communities.
Key Features
- ✓Peak module efficiency up to 24.6% under STC conditions
- ✓TaiRay wafer & BC cell technology for enhanced reliability and lower operating temperature
- ✓Bifacial dual-glass design with up to 88.85% bifaciality for increased energy yield
- ✓Power output range of 640W–665W, suitable for utility-scale and commercial rooftop installations
- ✓Anodized aluminum alloy frame with IP68-rated junction box and three diodes
- ✓Certified to IEC 61215, IEC 61730, and UL 61730 standards
- ✓30-year linear power output warranty and 15-year materials and workmanship warranty
- ✓Suitable for high-temperature scenarios and industrial/commercial corrugated steel roofs
Technical Specifications
| NOCT | 49 ± 3°C |
| Brand | LONGi |
| Frame | Anodized aluminum alloy frame |
| Weight | Listed in datasheet (kg) |
| Warranty | 15-year materials and workmanship warranty; 30-year linear power output warranty |
| Connector | MC4 compatible |
| Back Glass | Dual glass |
| Efficiency | Up to 24.6% (STC) |
| Application | Utility, Industrial, Commercial |
| Bifaciality | Up to 88.85% |
| Front Glass | Dual glass, heat-strengthened |
| J-Box Rating | IP68, three diodes |
| Panel Format | Bifacial Dual Glass |
| Certifications | IEC 61215, IEC 61730, UL 61730, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, IEC 62941 |
| Cell Technology | BC (Back Contact) with TaiRay Wafer |
| Module Dimensions | Length customizable; Width tolerance ±2mm |
| Operating Temperature | -40°C ~ +85°C |
| Max Series Fuse Rating | 30A |
| Maximum System Voltage | 1500V DC (IEC/UL) |
| Modules per 40' Container | 36 pcs per pallet; qty per 40' HC container as per packaging spec |
| Peak Power Watts-PMAX(Wp) | 640 / 645 / 650 / 655 / 660 / 665 |
| Open Circuit Voltage-VOC (V) | 49.52 / 49.62 / 49.72 / 49.82 / 49.92 / 50.02 (STC) |
| Short Circuit Current-ISC (A) | 16.38 / 16.46 / 16.54 / 16.62 / 16.70 / 16.78 (STC) |
| Maximum Power Current-IMPP (A) | 15.69 / 15.78 / 15.86 / 15.94 / 16.03 / 16.11 (STC) |
| Maximum Power Voltage-VMPP (V) | 40.78 / 40.88 / 40.98 / 41.08 / 41.18 / 41.28 (STC) |
| Temperature Coefficient of ISC | +0.04%/°C |
| Temperature Coefficient of VOC | -0.24%/°C |
| Temperature Coefficient of PMAX | -0.30%/°C |