Skip to main content
540Wp
Longi Solar Review

LR7-60HVHL-540M

Monocrystalline
23.90%
Efficiency
239.3 Wp/m²
Power Density
-0.260%/°C
Temp. Coeff. Pmax chart
480W from 540W
Power after 30 years
  • At 23.9% efficiency, this panel is on par with typical Back Contact 500-550W modules
  • Power density of 239.3 W/m² matches the Back Contact 500-550W median
  • At -0.26%/°C, hot weather performance is typical for Back Contact 500-550W panels
  • 16.3 kg weight - 7.2 kg lighter than Back Contact 500-550W median (23.5 kg), reducing installation effort
  • In the top 2% for efficiency among all Back Contact panels
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series Hi-MO X10 Guardian 6 variants
Efficiency Range 23.7% - 24.8%
Avg. Efficiency 24.27%
Technology Back Contact
Dimensions 1990 × 1134 mm
Show series description

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.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)540 Wp
Module Efficiency23.90%
Voltage at Max Power (Vmpp)37.11 V
Current at Max Power (Impp)14.55 A
Open Circuit Voltage (Voc)44.88 V
Short Circuit Current (Isc)15.25 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.260%/°C
Temp. Coeff. Voc-0.200%/°C
Temp. Coeff. Isc0.050%/°C
NOCT45°C
Cell Technology
Cell TypeMonocrystalline
Cell Count120
BifacialNo
Bifaciality Factor-
Dimensions & Weight
Length1990 mm
Width1134 mm
Height30 mm
Weight16.3 kg
Area2.26 m²
Power Density239.3 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty30 years
End-of-Warranty Output88.8%
First Year Degradation1.00%
Annual Degradation0.35%/year
Key Specifications
23.90%
Efficiency
540 Wp
Power
-0.26%/°C
Temp Coeff
30 yrs
Warranty