LONGi LR5-72HPH-550M (Hi-MO 5)

LR5-72HPH-550M is a monofacial solar panel from LONGi Solar (part of the Hi-MO 5m series). It is designed primarily for utility-scale, commercial, and large residential solar installations. LONGi, one of the world's largest solar manufacturers, is known for vertically integrated production, strong R&D in monocrystalline PERC technology, and competitive pricing.

Key Specifications

Power Output: 550W (nominal; variants in the series range 530–560W)
Module Efficiency: Approximately 21.3–21.7% (depending on exact binning)
Cell Configuration: 144 half-cut cells (72 equivalent full cells) using M10 (182mm) gallium-doped monocrystalline PERC cells with 9-busbar technology
Dimensions: ~2278 × 1134 × 35 mm
Weight: ~27.2–27.5 kg
Power Tolerance: 0 to +3%
Temperature Coefficient (Pmax): -0.34%/°C (good performance in hot climates)
Mechanical Load: Up to 5400 Pa snow load and 2400 Pa wind load
Warranty: 12 years product/materials warranty; 25-year linear power output warranty (typically ≤2% degradation in year 1, then ~0.55% per year thereafter, guaranteeing at least ~84.8% output at year 25)

Other notable features include half-cut cell design (reduces resistive losses and improves shading tolerance), low LID (Light-Induced Degradation) thanks to gallium doping, and strong low-light performance.

DATA SHEET