- 24.4% module efficiency - 1.9pp better than the Back Contact 550-600W median of 22.5%
- 243.7 W/m² power density - 19.2 W/m² more than Back Contact 550-600W median (224.5 W/m²), more power per roof area
- -0.26%/°C temperature coefficient (median: -0.29%/°C) - retains ~1% more power at high temperatures
- 16.3 kg weight - 10.9 kg lighter than Back Contact 550-600W median (27.2 kg), reducing installation effort
- #71 for efficiency, #457 for temperature performance out of 11672 panels
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Series Hi-MO X10 Guardian 6 variants
The Longi Solar Hi-MO X10 Guardian series represents a breakthrough in the photovoltaics sector, utilizing advanced Back Contact HPBC 2.0 cell technology. These modules were designed to eliminate the most common operational problems, offering a unique Anti-Dust design, which, thanks to a special frame without a side edge, prevents the accumulation of dust and water. This solves the problem of so-called mud streaks, which in traditional panels lead to shading of the bottom cells and significant power losses over time. The Guardian variant also stands out with its Light Design lightweight construction, being approximately 30 percent lighter than standard modules, which makes it an ideal choice for roofs with limited structural load capacity. With efficiency reaching 24.8 percent, this series ensures maximum energy yield even in low sunlight conditions, and the lack of busbars on the front gives the installation a luxurious, black appearance. It distinguishes itself from the competition through intelligent shading management and increased resistance to the formation of hot-spot points. This is a solution dedicated to investors looking for maintenance-free systems with the highest aesthetics, which maintain full performance for decades without the need for frequent cleaning of the glass surface.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 550 Wp |
| Module Efficiency | 24.40% |
| Voltage at Max Power (Vmpp) | 37.31 V |
| Current at Max Power (Impp) | 14.74 A |
| Open Circuit Voltage (Voc) | 45.08 V |
| Short Circuit Current (Isc) | 15.45 A |
| Max System Voltage | 1500 V |
Temperature Coefficients
| Temp. Coeff. Pmax | -0.260%/°C |
| Temp. Coeff. Voc | -0.200%/°C |
| Temp. Coeff. Isc | 0.050%/°C |
| NOCT | 45°C |
Cell Technology
| Cell Type | Monocrystalline |
| Cell Count | 120 |
| Bifacial | No |
| Bifaciality Factor | - |
Dimensions & Weight
| Length | 1990 mm |
| Width | 1134 mm |
| Height | 30 mm |
| Weight | 16.3 kg |
| Area | 2.26 m² |
| Power Density | 243.7 Wp/m² |
Warranty
| Product Warranty | 15 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 88.8% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.35%/year |