NT12R/66GDF 620W/625W is a high-performance bifacial dual glass monocrystalline photovoltaic module from GCL, designed for large-scale ground installations. It delivers up to 625W maximum power output with high efficiency and long-term reliability.
Key Technical Specifications
- Maximum Power Output: 625W
- Maximum Module Efficiency: 23.14%
- Power Output Guarantee: 0 to +5W
- Module Type: Bifacial Dual Glass Monocrystalline
- Technology: N-type
Features
- High reliability performance over time
- N-type technology with lower LID/LETID
- Large wafer design reducing system cost (support structures, cables, land usage)
- Lower LCOE for large installations
- Reduced micro-crack risk (non-destructive cutting process)
- Suitable for utility-scale solar projects
Certifications & Testing
- ISO 9001
- ISO 14001
- ISO 45001
- IEC 61701 (Salt Mist Test)
- IEC 62716 (Ammonia Corrosion Test)
- DIN EN 60068-2-68 (Sand Blowing Test)
- 2×100% Electroluminescence (EL) inspection
Durability & Reliability
- Salt mist, ammonia, and sand blowing resistance
- Long-term reliability testing completed
- High PID resistance and snail-trail free design
- Strict production process control
- Fully automated manufacturing facility
Performance & Warranty
- 12-Year Product Warranty
- 30-Year Linear Performance Warranty
- 0.40% Annual Degradation Rate
- Selected encapsulation materials for long-term stability
Insurance
- Backed by Swiss RE (refer to GCL warranty terms)




