Longi Solar LR5-54HIB-405M vs Longi Solar LR5-72HPH-550M
VS
The verdict
72HPH-550M leads on the differences that matter
The largest is rated power: 145 W more power. 9 of 19 comparable parameters are identical.
See all 10 differencesHow alike are they
9
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
10 of 19 parameters
What actually differs
Parameter
54HIB-405M
72HPH-550M
Difference
Rated power
405 Wp
550 Wp
145 W more power
Module efficiency
20.70 %
21.30 %
0.60 pp more efficient
Weight
21.5 kg
27.5 kg
6.0 kg lighter
Open-circuit voltage
37.15 V
49.80 V
12.65 V apart
Module area
1.953 m²
2.583 m²
0.631 m² apart
Power density
207.4 Wp/m²
212.9 Wp/m²
5.5 Wp/m² higher
Weight per kWp
53.1 kg/kWp
50.0 kg/kWp
3.1 kg/kWp lighter
Voltage at max power
31.18 V
41.95 V
10.77 V apart
Cell count
108
144
36 cells apart
Dimensions
1722x1134x30 mm
2278x1134x35 mm
1722x1134x30 mm vs 2278x1134x35 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 (-0.340 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
54HIB-405M
13,126 kWh
72HPH-550M
17,825 kWh
Lifetime gap
4,699 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
54HIB-405M
72HPH-550M
Standard test conditions
25 °C
100.0% of rated power
405 W
550 W
Cool, bright day
40 °C
94.9% of rated power
384 W
522 W
Typical summer roof
55 °C
89.8% of rated power
364 W
494 W
Hot roof
70 °C
84.7% of rated power
343 W
466 W
03
Full specification
Parameter
54HIB-405M
72HPH-550M
Difference
Power and efficiency
Rated power
405 Wp
550 Wp
+145 W for 72HPH-550M
Module efficiency
20.70 %
21.30 %
+0.60 pp for 72HPH-550M
Power density
207.4 Wp/m²
212.9 Wp/m²
+5.5 Wp/m² for 72HPH-550M
Open-circuit voltage
37.15 V
49.80 V
12.65 V apart
Voltage at max power
31.18 V
41.95 V
10.77 V apart
Short-circuit current
13.78 A
13.98 A
Effectively the same
Current at max power
12.99 A
13.12 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
1722x1134x30 mm
2278x1134x35 mm
1722x1134x30 mm vs 2278x1134x35 mm
Module area
1.953 m²
2.583 m²
0.631 m² apart
Weight
21.5 kg
27.5 kg
-6.0 kg for 54HIB-405M
Weight per kWp
53.1 kg/kWp
50.0 kg/kWp
-3.1 kg/kWp for 72HPH-550M
Warranty and degradation
Product warranty
12 yrs
12 yrs
Same
Performance warranty
25 yrs
25 yrs
Same
Annual degradation
0.55 %/yr
0.55 %/yr
Same
Technology
Cell technology
PERC
PERC
Same
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
#8,519
72HPH-550M leads by 2,245 places
Power density
#10,626
vs
#8,497
72HPH-550M leads by 2,129 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#6,847
vs
#3,298
72HPH-550M leads by 3,549 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#11,948
vs
#8,006
72HPH-550M leads by 3,942 places
05
Open the full database
More useful comparisons
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-72HPH-565M
10 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-72HPH-560M
10 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-72HPH-555M
10 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-72HPH-545M
10 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-66HPH-515M
10 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-54HIB-405M vs Longi Solar LR5-66HPH-510M
10 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR5-54HIB-405M or Longi Solar LR5-72HPH-550M?
According to our database: Longi Solar LR5-72HPH-550M has higher module efficiency (21.30% vs 20.70%). 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 LR5-72HPH-550M?
Longi Solar LR5-54HIB-405M has a module efficiency of 20.70%, while Longi Solar LR5-72HPH-550M is 21.30%. 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 LR5-72HPH-550M?
Longi Solar LR5-54HIB-405M uses PERC cells; Longi Solar LR5-72HPH-550M uses PERC. 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 LR5-72HPH-550M?
Longi Solar LR5-54HIB-405M has a 25 years power warranty; Longi Solar LR5-72HPH-550M has a 25 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 177 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.