- At 23.3% efficiency, this panel is on par with typical HJT 700-750W modules
- At 233.4 W/m² power density, this panel generates 3.2 W/m² more per unit area than HJT 700-750W median (230.2 W/m²)
- Temperature coefficient of -0.24%/°C matches the HJT 700-750W median
- 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces
- In the top 6% for efficiency among all HJT panels
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| Shop | Country | Price | Price/kWp |
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Series Helios Module Series (N-HJT HIGH EFFICIENCY MONO 132-20BB-W-WG) 5 variants
The Phono Solar Helios Module (N-HJT HIGH EFFICIENCY MONO 132-20BB-W-WG) was designed to maximize energy gain under real-world operating conditions – even when the roof has limited space, and the investor expects stable production for years. Its unique combination of N-type HJT cells and glass-glass dual-string construction ensures superior mechanical strength and better laminate sealing compared to many standard modules. The application of 20BB multi-string architecture minimizes connection losses and improves performance under partial shading, which is crucial in single-family home installations and commercial rooftops with obstacles. HJT technology also provides excellent performance at high temperatures and a better response to low light conditions, enabling the system to generate more energy in the morning, evening, and on cloudy days. This is the ideal choice for prosumers, agriculture, and businesses seeking reliability, longevity, and real-world growth in self-consumption.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 725 Wp |
| Module Efficiency | 23.34% |
| Voltage at Max Power (Vmpp) | 42.25 V |
| Current at Max Power (Impp) | 17.16 A |
| Open Circuit Voltage (Voc) | 50.31 V |
| Short Circuit Current (Isc) | 18.24 A |
| Max System Voltage | 1500 V |
Temperature Coefficients
| Temp. Coeff. Pmax | -0.240%/°C |
| Temp. Coeff. Voc | -0.220%/°C |
| Temp. Coeff. Isc | 0.040%/°C |
| NOCT | 44°C |
Cell Technology
| Cell Type | Monocrystalline |
| Cell Count | 132 |
| Bifacial | Yes |
| Bifaciality Factor | 90% |
Dimensions & Weight
| Length | 2384 mm |
| Width | 1303 mm |
| Height | 33 mm |
| Weight | 37.9 kg |
| Area | 3.11 m² |
| Power Density | 233.4 Wp/m² |
Warranty
| Product Warranty | 15 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 88.0% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.38%/year |