Longi Solar LR5-72HPH-560M vs Longi Solar LR5-66HPH-515M
VS
The verdict
72HPH-560M leads on the differences that matter
The largest is rated power: 45 W more power. 11 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.
See all 7 differencesHow alike are they
11
of 18 comparable
parameters are identical
parameters are identical
identical
differs
not published
01
7 of 18 parameters
What actually differs
Parameter
72HPH-560M
66HPH-515M
Difference
Rated power
560 Wp
515 Wp
45 W more power
Open-circuit voltage
50.10 V
46.00 V
4.10 V apart
Module area
2.583 m²
2.373 m²
0.210 m² apart
Weight
27.5 kg
25.3 kg
2.2 kg lighter
Cell count
144
132
12 cells apart
Voltage at max power
42.25 V
38.83 V
3.42 V apart
Dimensions
2278x1134x35 mm
2093x1134x35 mm
2278x1134x35 mm vs 2093x1134x35 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.
72HPH-560M
18,149 kWh
66HPH-515M
16,691 kWh
Lifetime gap
1,458 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
72HPH-560M
66HPH-515M
Standard test conditions
25 °C
100.0% of rated power
560 W
515 W
Cool, bright day
40 °C
94.9% of rated power
531 W
489 W
Typical summer roof
55 °C
89.8% of rated power
503 W
462 W
Hot roof
70 °C
84.7% of rated power
474 W
436 W
03
Full specification
Parameter
72HPH-560M
66HPH-515M
Difference
Power and efficiency
Rated power
560 Wp
515 Wp
+45 W for 72HPH-560M
Module efficiency
21.70 %
21.70 %
Same
Power density
216.8 Wp/m²
217.0 Wp/m²
Effectively the same
Open-circuit voltage
50.10 V
46.00 V
4.10 V apart
Voltage at max power
42.25 V
38.83 V
3.42 V apart
Short-circuit current
14.10 A
14.13 A
Effectively the same
Current at max power
13.26 A
13.27 A
Effectively the same
Temperature
Temperature coefficient
-0.340 %/°C
-0.340 %/°C
Same
Mechanical
Dimensions
2278x1134x35 mm
2093x1134x35 mm
2278x1134x35 mm vs 2093x1134x35 mm
Module area
2.583 m²
2.373 m²
0.210 m² apart
Weight
27.5 kg
25.3 kg
-2.2 kg for 66HPH-515M
Weight per kWp
49.1 kg/kWp
49.1 kg/kWp
Same
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
-
Not published by Longi Solar
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
132
12 cells apart
Bifacial
No
No
Same
04
14,005 panels
Against the whole database
Efficiency
#7,421
vs
#7,421
Tied - the same position in the database
Power density
#7,452
vs
#7,426
66HPH-515M leads by 26 places
Heat behaviour
#8,778
vs
#8,778
Tied - the same position in the database
Weight
#2,748
vs
#2,764
72HPH-560M leads by 16 places
Warranty
#9,798
vs
#9,798
Tied - the same position in the database
Overall
#7,083
vs
#8,762
72HPH-560M leads by 1,679 places
05
Open the full database
More useful comparisons
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-72HPH-565M
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-72HPH-555M
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-72HPH-550M
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-72HPH-545M
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-66HPH-510M
8 differences, the largest is rated power
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Longi Solar LR5-72HPH-560M vs Longi Solar LR5-54HPH-425M
7 differences, the largest is rated power
06
Written summary
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07
Questions about this pairing
Which panel is better: Longi Solar LR5-72HPH-560M or Longi Solar LR5-66HPH-515M?
According to our database: both panels are closely matched on key specs - the decision often comes down to price and local availability. See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HPH-560M and Longi Solar LR5-66HPH-515M?
Longi Solar LR5-72HPH-560M has a module efficiency of 21.70%, while Longi Solar LR5-66HPH-515M is 21.70%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-72HPH-560M use vs Longi Solar LR5-66HPH-515M?
Longi Solar LR5-72HPH-560M uses PERC cells; Longi Solar LR5-66HPH-515M uses Monocrystalline. 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 LR5-72HPH-560M and Longi Solar LR5-66HPH-515M?
Longi Solar LR5-72HPH-560M has a 25 years power warranty; Longi Solar LR5-66HPH-515M 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 150 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.