High-performance PV modules for utility
High-performance PV modules for utility power plants

Discover the LONGi Hi-MO 7 LR8-66HGD 625W solar panel, offering high efficiency and up to 625W power output for optimal energy solutions.
The LONGi Hi-MO 7 LR8-66HGD 625W solar panel is designed to deliver exceptional performance with a maximum power output of 625W. Its advanced technology ensures high efficiency and reliability, making it an ideal choice for various energy needs.
| Maximum Power (Pmax) | 625W |
|---|---|
| Open Circuit Voltage (Voc) | 49.0V |
| Short Circuit Current (Isc) | 15.15A |
| Voltage at Maximum Power (Vmpp) | 40.3V |
| Current at Maximum Power (Impp) | 15.22A |
| Module Efficiency | 23.1% |
| Dimensions (L×W×H) | 2382×1134×30mm |
|---|---|
| Weight | 32.5kg |
| Frame Material | Anodized aluminum alloy |
| Glass | Dual glass, 2.0+2.0mm heat strengthened glass |
| Temperature Coefficient of Isc | +0.049%/°C |
|---|---|
| Temperature Coefficient of Voc | -0.230%/°C |
| Temperature Coefficient of Pmax | -0.280%/°C |
| Front Side Maximum Static Loading | 5400Pa |
| Rear Side Maximum Static Loading | 2400Pa |
| Hailstone Test | 25mm Hailstone at the speed of 23m/s |
| Operational Temperature | -40°C to +85°C |
| Power Output Tolerance | 0~3% |
| Maximum System Voltage | DC1500V (IEC/UL) |
| Maximum Series Fuse Rating | 35A |
| Protection Class | Class II |
| Bifaciality | 80±5% |




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Read: LONGi vs Risen Energy — Solar Panel Comparison 2026 →Compare roof-mounted and ground-mounted solar panel systems. Costs, performance, maintenance differences, and which LONGi panels work best for each.
Read: Roof Mount vs Ground Mount Solar Panels — Which Is Better? →The Hi-MO 7 LR8-66HGD 595-625M solar panel has a maximum power output of 595W and a module efficiency of 22.0%, making it highly efficient for energy conversion.
The dimensions of the Hi-MO 7 LR8-66HGD 595-625M are 2382×1134×30mm, and it weighs 32.5kg, making it suitable for various installation scenarios.
The temperature coefficient of Pmax is -0.280%/°C, indicating a slight decrease in performance with rising temperatures. The coefficients for Isc and Voc are +0.049%/°C and -0.230%/°C, respectively.
This solar panel is certified under IEC 61215, IEC 61730, UL 61730, ISO9001:2015, ISO14001:2015, ISO45001:2018, and IEC62941, ensuring its durability and safety.
LONGi Solar typically offers a product warranty of 10-12 years and a performance warranty of 25 years, ensuring long-term reliability and performance.
The panel requires proper mounting and is compatible with standard system voltages. It is essential to follow the manufacturer's installation guidelines for optimal performance.
Yes, the Hi-MO 7 LR8-66HGD 595-625M is designed to be compatible with a wide range of inverters and solar systems, ensuring flexibility in system design.
The panel is built to withstand harsh environmental conditions, including high salt and ammonia levels, thanks to its robust construction and dual glass design.