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72HPH-565M vs 66HPH-495M 8 of 19 identical Swap Change panels

Longi Solar LR5-72HPH-565M vs Longi Solar LR5-66HPH-495M

Longi Solar LR5-72HPH-565M
LR5-72HPH-565M
565 Wp 21.90 % PERC
Open panel page Datasheet PDF
VS
Longi Solar LR5-66HPH-495M
LR5-66HPH-495M
495 Wp 21.10 % PERC
Open panel page Datasheet PDF
The verdict

72HPH-565M leads on the differences that matter

The largest is module efficiency: 0.80 pp more efficient. 8 of 19 comparable parameters are identical.

See all 11 differences
How alike are they
8 of 19 comparable
parameters are identical
identical differs
01

What actually differs

11 of 19 parameters
Parameter 72HPH-565M 66HPH-495M Difference
Module efficiency 21.90 % 21.10 % 0.80 pp more efficient
Rated power 565 Wp 495 Wp 70 W more power
Power density 218.7 Wp/m² 210.8 Wp/m² 8.0 Wp/m² higher
Open-circuit voltage 50.30 V 45.40 V 4.90 V apart
Module area 2.583 m² 2.349 m² 0.235 m² apart
Weight 27.5 kg 25.1 kg 2.4 kg lighter
Temperature coefficient -0.340 %/°C -0.350 %/°C 0.010 %/°C better in heat
Voltage at max power 42.42 V 38.23 V 4.19 V apart
Cell count 144 132 12 cells apart
Weight per kWp 48.7 kg/kWp 50.7 kg/kWp 2.0 kg/kWp lighter
Dimensions 2278x1134x35 mm 2073x1133x35 mm 2278x1134x35 mm vs 2073x1133x35 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
72HPH-565M
18,311 kWh
66HPH-495M
16,042 kWh
Lifetime gap
2,269 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 72HPH-565M 66HPH-495M
Standard test conditions 25 °C 100.0% of rated power 565 W 495 W
Cool, bright day 40 °C 94.8% of rated power 536 W 469 W
Typical summer roof 55 °C 89.5% of rated power 507 W 443 W
Hot roof 70 °C 84.2% of rated power 479 W 417 W
03

Full specification

Parameter 72HPH-565M 66HPH-495M Difference
Power and efficiency
Rated power 565 Wp 495 Wp +70 W for 72HPH-565M
Module efficiency 21.90 % 21.10 % +0.80 pp for 72HPH-565M
Power density 218.7 Wp/m² 210.8 Wp/m² +8.0 Wp/m² for 72HPH-565M
Open-circuit voltage 50.30 V 45.40 V 4.90 V apart
Voltage at max power 42.42 V 38.23 V 4.19 V apart
Short-circuit current 14.16 A 13.82 A Effectively the same
Current at max power 13.32 A 12.95 A Effectively the same
Temperature
Temperature coefficient -0.340 %/°C -0.350 %/°C +0.010 %/°C for 72HPH-565M
Mechanical
Dimensions 2278x1134x35 mm 2073x1133x35 mm 2278x1134x35 mm vs 2073x1133x35 mm
Module area 2.583 m² 2.349 m² 0.235 m² apart
Weight 27.5 kg 25.1 kg -2.4 kg for 66HPH-495M
Weight per kWp 48.7 kg/kWp 50.7 kg/kWp -2.0 kg/kWp for 72HPH-565M
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 144 132 12 cells apart
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#6,783 vs #9,297
72HPH-565M leads by 2,514 places
Power density
#6,841 vs #9,554
72HPH-565M leads by 2,713 places
Heat behaviour
#8,778 vs #10,419
72HPH-565M leads by 1,641 places
Weight
#2,406 vs #4,122
72HPH-565M leads by 1,716 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#6,649 vs #9,945
72HPH-565M leads by 3,296 places
05

More useful comparisons

Open the full database
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-560M
One difference: module efficiency
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-555M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-550M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-72HPH-545M
3 differences, the largest is module efficiency
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-66HPH-515M
8 differences, the largest is rated power
Same series, other bin
Longi Solar LR5-72HPH-565M vs Longi Solar LR5-66HPH-510M
9 differences, the largest is rated power
06

Written summary

07

Questions about this pairing

Which panel is better: Longi Solar LR5-72HPH-565M or Longi Solar LR5-66HPH-495M?
According to our database: Longi Solar LR5-72HPH-565M has higher module efficiency (21.90% vs 21.10%); Longi Solar LR5-72HPH-565M tolerates heat better (temp coeff -0.340%/°C vs -0.350%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR5-72HPH-565M and Longi Solar LR5-66HPH-495M?
Longi Solar LR5-72HPH-565M has a module efficiency of 21.90%, while Longi Solar LR5-66HPH-495M is 21.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR5-72HPH-565M use vs Longi Solar LR5-66HPH-495M?
Longi Solar LR5-72HPH-565M uses PERC cells; Longi Solar LR5-66HPH-495M 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 LR5-72HPH-565M and Longi Solar LR5-66HPH-495M?
Longi Solar LR5-72HPH-565M has a 25 years power warranty; Longi Solar LR5-66HPH-495M 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 174 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.