Monocrystalline silicon photovoltaic module ST-700 Standard
PERCIEC 61730IEC 61215

Monocrystalline silicon photovoltaic module - ST-700 Standard - Helios Renewables - PERC / IEC 61730 / IEC 61215
Monocrystalline silicon photovoltaic module - ST-700 Standard - Helios Renewables - PERC / IEC 61730 / IEC 61215
Monocrystalline silicon photovoltaic module - ST-700 Standard - Helios Renewables - PERC / IEC 61730 / IEC 61215 - image - 2
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Characteristics

Technology
monocrystalline silicon
Cell architecture
PERC
Certifications
IEC 61730, IEC 61215
Other characteristics
high-efficiency, rugged, rooftop, high-performance
Peak power (Wp)

Min.: 400 W
(0.54 hp)

Max.: 400 W
(0.54 hp)

Module efficiency

Min.: 22.8 %

Max.: 22.8 %

Lenght

Min.: 1,755 mm
(69 in)

Max.: 1,755 mm
(69 in)

Width

Min.: 1,038 mm
(41 in)

Max.: 1,038 mm
(41 in)

Height

Min.: 35 mm
(1 in)

Max.: 35 mm
(1 in)

Description

Product overview
The 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

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.