Longi Solar LR7-72HVDF-665M vs Longi Solar LR7-72HTH-605M
VS
The verdict
72HVDF-665M leads on the differences that matter
The largest is module efficiency: 2.20 pp more efficient. 6 of 19 comparable parameters are identical.
See all 13 differencesHow alike are they
6
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
13 of 19 parameters
What actually differs
Parameter
72HVDF-665M
72HTH-605M
Difference
Module efficiency
24.60 %
22.40 %
2.20 pp more efficient
Rated power
665 Wp
605 Wp
60 W more power
Power density
246.2 Wp/m²
224.0 Wp/m²
22.2 Wp/m² higher
Performance warranty
30 yrs
25 yrs
5 yrs longer
Weight
33.5 kg
28.5 kg
5.0 kg lighter
Temperature coefficient
-0.260 %/°C
-0.280 %/°C
0.020 %/°C better in heat
Weight per kWp
50.4 kg/kWp
47.1 kg/kWp
3.3 kg/kWp lighter
Open-circuit voltage
54.52 V
52.27 V
2.25 V apart
Annual degradation
0.35 %/yr
0.40 %/yr
0.05 %/yr slower
Bifacial
Yes
No
Yes vs No
Short-circuit current
15.35 A
14.74 A
0.61 A apart
Current at max power
14.72 A
13.75 A
0.97 A apart
Voltage at max power
45.17 V
44.03 V
1.14 V apart
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
72HVDF-665M
22,486 kWh
72HTH-605M
20,299 kWh
Lifetime gap
2,187 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
72HVDF-665M
72HTH-605M
Standard test conditions
25 °C
100.0% of rated power
665 W
605 W
Cool, bright day
40 °C
95.8% of rated power
639 W
580 W
Typical summer roof
55 °C
91.6% of rated power
613 W
554 W
Hot roof
70 °C
87.4% of rated power
587 W
529 W
03
Full specification
Parameter
72HVDF-665M
72HTH-605M
Difference
Power and efficiency
Rated power
665 Wp
605 Wp
+60 W for 72HVDF-665M
Module efficiency
24.60 %
22.40 %
+2.20 pp for 72HVDF-665M
Power density
246.2 Wp/m²
224.0 Wp/m²
+22.2 Wp/m² for 72HVDF-665M
Open-circuit voltage
54.52 V
52.27 V
2.25 V apart
Voltage at max power
45.17 V
44.03 V
1.14 V apart
Short-circuit current
15.35 A
14.74 A
0.61 A apart
Current at max power
14.72 A
13.75 A
0.97 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.280 %/°C
+0.020 %/°C for 72HVDF-665M
Mechanical
Dimensions
2382x1134x30 mm
2382x1134x30 mm
Same
Module area
2.701 m²
2.701 m²
Same
Weight
33.5 kg
28.5 kg
-5.0 kg for 72HTH-605M
Weight per kWp
50.4 kg/kWp
47.1 kg/kWp
-3.3 kg/kWp for 72HTH-605M
Warranty and degradation
Product warranty
15 yrs
15 yrs
Same
Performance warranty
30 yrs
25 yrs
+5 yrs for 72HVDF-665M
Annual degradation
0.35 %/yr
0.40 %/yr
-0.05 %/yr for 72HVDF-665M
Technology
Cell technology
N-type
N-type
Same
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
Yes
No
Yes vs No
04
14,005 panels
Against the whole database
Efficiency
#51
vs
#4,774
72HVDF-665M leads by 4,723 places
Power density
#42
vs
#4,780
72HVDF-665M leads by 4,738 places
Heat behaviour
#511
vs
#1,309
72HVDF-665M leads by 798 places
Weight
#3,742
vs
#1,498
72HTH-605M leads by 2,244 places
Warranty
#21
vs
#9,798
72HVDF-665M leads by 9,777 places
Overall
#414
vs
#4,020
72HVDF-665M leads by 3,606 places
05
Open the full database
More useful comparisons
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Longi Solar LR7-72HVDF-665M vs Longi Solar LR7-72HVDF-640M
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Same series, other bin
Longi Solar LR7-72HTH-605M vs Longi Solar LR7-72HTH-615M
3 differences, the largest is module efficiency
06
Written summary
Checking cache...
07
Questions about this pairing
Which panel is better: Longi Solar LR7-72HVDF-665M or Longi Solar LR7-72HTH-605M?
According to our database: Longi Solar LR7-72HVDF-665M has higher module efficiency (24.60% vs 22.40%); Longi Solar LR7-72HVDF-665M tolerates heat better (temp coeff -0.260%/°C vs -0.280%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Longi Solar LR7-72HVDF-665M and Longi Solar LR7-72HTH-605M?
Longi Solar LR7-72HVDF-665M has a module efficiency of 24.60%, while Longi Solar LR7-72HTH-605M is 22.40%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Longi Solar LR7-72HVDF-665M use vs Longi Solar LR7-72HTH-605M?
Longi Solar LR7-72HVDF-665M uses N-type cells; Longi Solar LR7-72HTH-605M 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 LR7-72HVDF-665M and Longi Solar LR7-72HTH-605M?
Longi Solar LR7-72HVDF-665M has a 30 years power warranty; Longi Solar LR7-72HTH-605M 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.
Are Longi Solar LR7-72HVDF-665M and Longi Solar LR7-72HTH-605M bifacial panels?
Longi Solar LR7-72HVDF-665M is bifacial (captures light from both faces); Longi Solar LR7-72HTH-605M is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 179 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.