Monocrystalline silicon photovoltaic module ST-550 Pro

PERCIEC 61215IEC 61730

Overview
The ST-400 Pro from Helios Renewables is a high-performance solar panel engineered for commercial and industrial photovoltaic installations. It integrates latest-generation monocrystalline PERC cells to deliver 400 Wp output with 22.8% efficiency and a low-profile 35 mm thickness. Designed for long-term field use, it includes a 25-year warranty.

Highlights

• Power: 400 Wp
• Efficiency: 22.8%
• Dimensions: 1755 × 1038 × 35 mm
• Warranty: 25 years

Advantages

• Latest-generation monocrystalline PERC cells for improved performance
• Enhanced resistance to extreme weather and temperature variations
• Anti-reflective coating to maximize light absorption
• Certified to IEC 61215 and IEC 61730 standards
• Compatible with all common inverter types
• Integrated mounting system for rapid installation on commercial arrays

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

Technical specifications

• Brand: Helios Renewables
• Model: ST-400 Pro
• Cell type: Monocrystalline PERC cells
• Power output: 400 Wp
• Efficiency: 22.8%
• Dimensions: 1755 × 1038 × 35 mm
• Warranty: 25 years
• Certifications: IEC 61215, IEC 61730
• Coating: Anti-reflective coating
• Compatibility: Compatible with all types of inverters
• Installation: Integrated mounting system for quick installation