Monocrystalline silicon photovoltaic module ST-300 Eco

PERCIEC 61215IEC 61730

Overview
The ST-400 Pro is a high-efficiency solar panel designed for commercial and utility-scale installations. It delivers 400 Wp with 22.8% module efficiency and is engineered for long-term field operation with a 25-year product warranty. Manufacturer: Helios Renewables (France).

Key specifications

• Model: ST-400 Pro
• Cell type: Monocrystalline PERC (latest generation)
• Nominal power: 400 Wp
• Module efficiency: 22.8%
• Dimensions (L × W × H): 1755 × 1038 × 35 mm
• Warranty: 25 years
• Certifications: IEC 61215, IEC 61730

Advantages

• High-efficiency PERC cells increase energy yield per m²
• Enhanced resistance to extreme weather conditions
• Anti-reflective coating for improved irradiance absorption
• Wide inverter compatibility simplifies system design
• Integrated mounting system reduces installation time

Comparison
Model | Power | Efficiency | Warranty | Range
ST-400 Pro | 400 Wp | 22.8% | 25 years | High performance
ST-350 Standard | 350 Wp | 20.5% | 20 years | Standard
ST-300 Eco | 300 Wp | 18.9% | 15 years | Entry-level

Technical specifications

• Manufacturer: Helios Renewables (France)
• Model: ST-400 Pro
• Cell technology: Monocrystalline PERC
• Pmax: 400 Wp
• Efficiency: 22.8%
• Dimensions: 1755 × 1038 × 35 mm
• Product warranty: 25 years
• Certifications: IEC 61215, IEC 61730
• Surface treatment: Anti-reflective coating
• Compatibility: Compatible with common inverter types
• Mounting: Integrated mounting system for faster installation