Description
Longi LR8-66HGD-620M
The Longi Solar Hi-MO 7 LR8-66HGD-620M is a high-efficiency 620W bifacial monocrystalline solar panel from LONGi’s Hi-MO 7 range, designed for commercial, industrial, and large residential solar installations.
Key Specifications
- Power Output: 620W
- Panel Type: Monocrystalline bifacial (dual-glass)
- Efficiency: Up to 23.0%–23.1%
- Technology: Hi-MO 7 N-type half-cell design
- Bifacial Gain: Up to 25% additional rear-side generation depending on installation surface
- Low Degradation:
- <1% first-year degradation
- 0.4% annual degradation thereafter
- Warranty:
- 12-year product warranty
- 30-year linear performance warranty
- Excellent Heat Performance: Better output retention in high temperatures due to a low temperature coefficient (-0.28%/°C)
Physical Characteristics
Cells: 132 half-cells
Dimensions: 2382 × 1134 × 30 mm
Weight: ±32.2–33.5 kg
Glass-Glass Construction: Dual 2.0 mm heat-strengthened glass
Frame: Anodized aluminum alloy
Advantages
- Very high wattage reduces the number of panels needed
- Excellent for large inverter systems
- Performs well in hot climates like South Africa
- Dual-glass construction improves durability and lifespan
- Strong mechanical load resistance (5400 Pa front load)
Ideal Uses
- Commercial solar systems
- Agricultural and industrial sites
- Large residential systems
- Ground-mounted bifacial installations
