Product overviewThe ST-400 Pro is a 400 Wp monocrystalline PERC solar panel engineered for industrial and commercial photovoltaic installations. It delivers 22.8% conversion efficiency and is built for long-term field operation with enhanced mechanical and environmental durability. The product includes a 25-year performance warranty and is certified to international standards.
Key features- Latest-generation monocrystalline PERC cells
- Enhanced resistance to extreme weather conditions (wind, snow, thermal cycling)
- Anti-reflective coating for improved light absorption
- IEC 61215 and IEC 61730 certified
- Compatible with all common inverter types
- Integrated mounting system for faster installation
Comparison (models)Model | Power | Efficiency | Warranty | Position
ST-400 Pro — 400 Wp | 22.8% | 25 years | ★★★ (Best-seller)
ST-350 Standard — 350 Wp | 20.5% | 20 years | ★★
ST-300 Eco — 300 Wp | 18.9% | 15 years | ★
Technical specifications- Power output: 400 Wp
- Efficiency: 22.8%
- Cell type: Monocrystalline PERC cells (latest generation)
- Dimensions: 1755 × 1038 × 35 mm
- Warranty: 25 years
- Certifications: IEC 61215, IEC 61730
- Coating: Anti-reflective
- Compatibility: Compatible with all common inverter types
- Installation: Integrated mounting system for quick installation
- Designed for: Enhanced resistance to extreme weather conditions