Longi Solar LR5-54HIB-405M vs Longi Solar LR7-72HVHF-670M
VS
The verdict
LR7-72HVHF-670M leads on the differences that matter
The largest is module efficiency: 4.10 pp more efficient. 2 of 19 comparable parameters are identical.
See all 17 differencesHow alike are they
2
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
17 of 19 parameters
What actually differs
Parameter
LR5-54HIB-405M
LR7-72HVHF-670M
Difference
Module efficiency
20.70 %
24.80 %
4.10 pp more efficient
Temperature coefficient
-0.340 %/°C
-0.260 %/°C
0.080 %/°C better in heat
Rated power
405 Wp
670 Wp
265 W more power
Power density
207.4 Wp/m²
248.0 Wp/m²
40.6 Wp/m² higher
Performance warranty
25 yrs
30 yrs
5 yrs longer
Annual degradation
0.55 %/yr
0.35 %/yr
0.20 %/yr slower
Weight
21.5 kg
28.5 kg
7.0 kg lighter
Weight per kWp
53.1 kg/kWp
42.5 kg/kWp
10.5 kg/kWp lighter
Product warranty
12 yrs
15 yrs
3 yrs longer
Open-circuit voltage
37.15 V
54.30 V
17.15 V apart
Module area
1.953 m²
2.701 m²
0.748 m² apart
Short-circuit current
13.78 A
15.60 A
1.82 A apart
Cell technology
PERC
N-type
PERC vs N-type
Voltage at max power
31.18 V
44.96 V
13.78 V apart
Cell count
108
144
36 cells apart
Current at max power
12.99 A
14.91 A
1.92 A apart
Dimensions
1722x1134x30 mm
2382x1134x30 mm
1722x1134x30 mm vs 2382x1134x30 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
LR5-54HIB-405M
13,126 kWh
LR7-72HVHF-670M
22,655 kWh
Lifetime gap
9,529 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
LR5-54HIB-405M
LR7-72HVHF-670M
Standard test conditions
25 °C
100.0% of rated power
405 W
670 W
Cool, bright day
40 °C
94.9% of rated power
384 W
644 W
Typical summer roof
55 °C
89.8% of rated power
364 W
618 W
Hot roof
70 °C
84.7% of rated power
343 W
592 W
03
Full specification
Parameter
LR5-54HIB-405M
LR7-72HVHF-670M
Difference
Power and efficiency
Rated power
405 Wp
670 Wp
+265 W for LR7-72HVHF-670M
Module efficiency
20.70 %
24.80 %
+4.10 pp for LR7-72HVHF-670M
Power density
207.4 Wp/m²
248.0 Wp/m²
+40.6 Wp/m² for LR7-72HVHF-670M
Open-circuit voltage
37.15 V
54.30 V
17.15 V apart
Voltage at max power
31.18 V
44.96 V
13.78 V apart
Short-circuit current
13.78 A
15.60 A
1.82 A apart
Current at max power
12.99 A
14.91 A
1.92 A apart
Temperature
Temperature coefficient
-0.340 %/°C
-0.260 %/°C
+0.080 %/°C for LR7-72HVHF-670M
Mechanical
Dimensions
1722x1134x30 mm
2382x1134x30 mm
1722x1134x30 mm vs 2382x1134x30 mm
Module area
1.953 m²
2.701 m²
0.748 m² apart
Weight
21.5 kg
28.5 kg
-7.0 kg for LR5-54HIB-405M
Weight per kWp
53.1 kg/kWp
42.5 kg/kWp
-10.5 kg/kWp for LR7-72HVHF-670M
Warranty and degradation
Product warranty
12 yrs
15 yrs
+3 yrs for LR7-72HVHF-670M
Performance warranty
25 yrs
30 yrs
+5 yrs for LR7-72HVHF-670M
Annual degradation
0.55 %/yr
0.35 %/yr
-0.20 %/yr for LR7-72HVHF-670M
Technology
Cell technology
PERC
N-type
PERC vs N-type
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
108
144
36 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#10,764
vs
#12
LR7-72HVHF-670M leads by 10,752 places
Power density
#10,626
vs
#14
LR7-72HVHF-670M leads by 10,612 places
Heat behaviour
#8,778
vs
#511
LR7-72HVHF-670M leads by 8,267 places
Weight
#6,847
vs
#226
LR7-72HVHF-670M leads by 6,621 places
Warranty
#9,798
vs
#21
LR7-72HVHF-670M leads by 9,777 places
Overall
#11,948
vs
#284
LR7-72HVHF-670M leads by 11,664 places
05
Open the full database
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06
Written summary
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07
Questions about this pairing
Which panel is better: Longi Solar LR5-54HIB-405M or Longi Solar LR7-72HVHF-670M?
According to our database: Longi Solar LR7-72HVHF-670M has higher module efficiency (24.80% vs 20.70%); Longi Solar LR7-72HVHF-670M tolerates heat better (temp coeff -0.260%/°C vs -0.340%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-54HIB-405M and Longi Solar LR7-72HVHF-670M?
Longi Solar LR5-54HIB-405M has a module efficiency of 20.70%, while Longi Solar LR7-72HVHF-670M is 24.80%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-54HIB-405M use vs Longi Solar LR7-72HVHF-670M?
Longi Solar LR5-54HIB-405M uses PERC cells; Longi Solar LR7-72HVHF-670M uses N-type. 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 LR5-54HIB-405M and Longi Solar LR7-72HVHF-670M?
Longi Solar LR5-54HIB-405M has a 25 years power warranty; Longi Solar LR7-72HVHF-670M 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.
Shop prices: See 172 Longi Solar 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.