Longi Solar LR7-54HJD-510M vs Hyundai HiT-H520LF-FB(ZB)
VS
The verdict
LR7-54HJD-510M leads on the differences that matter
The largest is module efficiency: 1.60 pp more efficient. 10 of 19 comparable parameters are identical.
See all 9 differencesHow alike are they
10
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
9 of 19 parameters
What actually differs
Parameter
LR7-54HJD-510M
HiT-H520LF-FB(ZB)
Difference
Module efficiency
25.00 %
23.40 %
1.60 pp more efficient
Power density
249.9 Wp/m²
234.0 Wp/m²
15.9 Wp/m² higher
Weight
23.5 kg
27.1 kg
3.6 kg lighter
Weight per kWp
46.1 kg/kWp
52.1 kg/kWp
6.0 kg/kWp lighter
Module area
2.041 m²
2.223 m²
0.181 m² apart
Cell technology
Back Contact
HJT
Back Contact vs HJT
Rated power
510 Wp
520 Wp
10 W more power
Annual degradation
0.35 %/yr
0.30 %/yr
0.05 %/yr slower
Dimensions
1800x1134x30 mm
1960x1134x30 mm
1800x1134x30 mm vs 1960x1134x30 mm
02
What it means on a roof
Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.240 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
LR7-54HJD-510M
17,245 kWh
HiT-H520LF-FB(ZB)
17,718 kWh
Lifetime gap
473 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
LR7-54HJD-510M
HiT-H520LF-FB(ZB)
Standard test conditions
25 °C
100.0% of rated power
510 W
520 W
Cool, bright day
40 °C
96.4% of rated power
492 W
501 W
Typical summer roof
55 °C
92.8% of rated power
473 W
483 W
Hot roof
70 °C
89.2% of rated power
455 W
464 W
03
Full specification
Parameter
LR7-54HJD-510M
HiT-H520LF-FB(ZB)
Difference
Power and efficiency
Rated power
510 Wp
520 Wp
+10 W for HiT-H520LF-FB(ZB)
Module efficiency
25.00 %
23.40 %
+1.60 pp for LR7-54HJD-510M
Power density
249.9 Wp/m²
234.0 Wp/m²
+15.9 Wp/m² for LR7-54HJD-510M
Open-circuit voltage
41.55 V
41.20 V
Effectively the same
Voltage at max power
34.37 V
34.60 V
Effectively the same
Short-circuit current
15.52 A
15.92 A
Effectively the same
Current at max power
14.84 A
15.04 A
Effectively the same
Temperature
Temperature coefficient
-0.240 %/°C
-0.240 %/°C
Same
Mechanical
Dimensions
1800x1134x30 mm
1960x1134x30 mm
1800x1134x30 mm vs 1960x1134x30 mm
Module area
2.041 m²
2.223 m²
0.181 m² apart
Weight
23.5 kg
27.1 kg
-3.6 kg for LR7-54HJD-510M
Weight per kWp
46.1 kg/kWp
52.1 kg/kWp
-6.0 kg/kWp for LR7-54HJD-510M
Warranty and degradation
Product warranty
30 yrs
30 yrs
Same
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.30 %/yr
-0.05 %/yr for HiT-H520LF-FB(ZB)
Technology
Cell technology
Back Contact
HJT
Back Contact vs HJT
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
108
Same
Bifacial
Yes
Yes
Same
04
14,005 panels
Against the whole database
Efficiency
#4
vs
#882
LR7-54HJD-510M leads by 878 places
Power density
#7
vs
#898
LR7-54HJD-510M leads by 891 places
Heat behaviour
#13
vs
#13
Tied - the same position in the database
Weight
#979
vs
#5,593
LR7-54HJD-510M leads by 4,614 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#1,144
vs
#1,953
LR7-54HJD-510M leads by 809 places
05
Open the full database
More useful comparisons
Same series, other bin
Longi Solar LR7-54HJD-510M vs Longi Solar LR7-54HJD-505M
One difference: module efficiency
Same series, other bin
Longi Solar LR7-54HJD-510M vs Longi Solar LR7-54HJD-500M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR7-54HJD-510M vs Longi Solar LR7-54HJD-495M
3 differences, the largest is module efficiency
Same series, other bin
Hyundai HiT-H520LF-FB(ZB) vs Hyundai HiT-H515LF-FB(ZB)
One difference: module efficiency
Same series, other bin
Hyundai HiT-H520LF-FB(ZB) vs Hyundai HiT-H510LF-FB(ZB)
3 differences, the largest is module efficiency
Same series, other bin
Hyundai HiT-H520LF-FB(ZB) vs Hyundai HiT-H505LF-FB(ZB)
3 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR7-54HJD-510M or Hyundai HiT-H520LF-FB(ZB)?
According to our database: Longi Solar LR7-54HJD-510M has higher module efficiency (25.00% vs 23.40%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR7-54HJD-510M and Hyundai HiT-H520LF-FB(ZB)?
Longi Solar LR7-54HJD-510M has a module efficiency of 25.00%, while Hyundai HiT-H520LF-FB(ZB) is 23.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR7-54HJD-510M use vs Hyundai HiT-H520LF-FB(ZB)?
Longi Solar LR7-54HJD-510M uses Back Contact cells; Hyundai HiT-H520LF-FB(ZB) uses HJT. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Longi Solar LR7-54HJD-510M and Hyundai HiT-H520LF-FB(ZB)?
Longi Solar LR7-54HJD-510M has a 30 years power warranty; Hyundai HiT-H520LF-FB(ZB) has a 30 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.
Are Longi Solar LR7-54HJD-510M and Hyundai HiT-H520LF-FB(ZB) bifacial panels?
Both Longi Solar LR7-54HJD-510M and Hyundai HiT-H520LF-FB(ZB) are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.
Shop prices: See 147 Longi Solar offers · See 38 Hyundai offers
Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.