AIKO AIKO-A665-MDE72Dw vs JA Solar JAM72D40-610/LB
VS
The verdict
AIKO-A665-MDE72Dw leads on the differences that matter
The largest is module efficiency: 1.50 pp more efficient. 4 of 19 comparable parameters are identical.
See all 15 differencesHow alike are they
4
of 19 comparable
parameters are identical
parameters are identical
identical
differs
01
15 of 19 parameters
What actually differs
Parameter
AIKO-A665-MDE72Dw
JAM72D40-610/LB
Difference
Module efficiency
24.60 %
23.10 %
1.50 pp more efficient
Rated power
665 Wp
610 Wp
55 W more power
Power density
246.2 Wp/m²
230.6 Wp/m²
15.6 Wp/m² higher
Temperature coefficient
-0.260 %/°C
-0.290 %/°C
0.030 %/°C better in heat
Product warranty
15 yrs
12 yrs
3 yrs longer
Module area
2.701 m²
2.646 m²
0.056 m² apart
Weight per kWp
49.6 kg/kWp
53.3 kg/kWp
3.7 kg/kWp lighter
Cell technology
Back Contact
TOPCon
Back Contact vs TOPCon
Annual degradation
0.35 %/yr
0.40 %/yr
0.05 %/yr slower
Open-circuit voltage
54.40 V
52.80 V
1.60 V apart
Bifacial
No
Yes
No vs Yes
Short-circuit current
15.24 A
14.57 A
0.67 A apart
Dimensions
2382x1134x30 mm
2333x1134x30 mm
2382x1134x30 mm vs 2333x1134x30 mm
Current at max power
14.59 A
13.83 A
0.76 A apart
Voltage at max power
45.60 V
44.11 V
1.49 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
AIKO-A665-MDE72Dw
22,486 kWh
JAM72D40-610/LB
20,467 kWh
Lifetime gap
2,019 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario
AIKO-A665-MDE72Dw
JAM72D40-610/LB
Standard test conditions
25 °C
100.0% of rated power
665 W
610 W
Cool, bright day
40 °C
95.7% of rated power
639 W
583 W
Typical summer roof
55 °C
91.3% of rated power
613 W
557 W
Hot roof
70 °C
87.0% of rated power
587 W
530 W
03
Full specification
Parameter
AIKO-A665-MDE72Dw
JAM72D40-610/LB
Difference
Power and efficiency
Rated power
665 Wp
610 Wp
+55 W for AIKO-A665-MDE72Dw
Module efficiency
24.60 %
23.10 %
+1.50 pp for AIKO-A665-MDE72Dw
Power density
246.2 Wp/m²
230.6 Wp/m²
+15.6 Wp/m² for AIKO-A665-MDE72Dw
Open-circuit voltage
54.40 V
52.80 V
1.60 V apart
Voltage at max power
45.60 V
44.11 V
1.49 V apart
Short-circuit current
15.24 A
14.57 A
0.67 A apart
Current at max power
14.59 A
13.83 A
0.76 A apart
Temperature
Temperature coefficient
-0.260 %/°C
-0.290 %/°C
+0.030 %/°C for AIKO-A665-MDE72Dw
Mechanical
Dimensions
2382x1134x30 mm
2333x1134x30 mm
2382x1134x30 mm vs 2333x1134x30 mm
Module area
2.701 m²
2.646 m²
0.056 m² apart
Weight
33.0 kg
32.5 kg
Effectively the same
Weight per kWp
49.6 kg/kWp
53.3 kg/kWp
-3.7 kg/kWp for AIKO-A665-MDE72Dw
Warranty and degradation
Product warranty
15 yrs
12 yrs
+3 yrs for AIKO-A665-MDE72Dw
Performance warranty
30 yrs
30 yrs
Same
Annual degradation
0.35 %/yr
0.40 %/yr
-0.05 %/yr for AIKO-A665-MDE72Dw
Technology
Cell technology
Back Contact
TOPCon
Back Contact vs TOPCon
Cell type
Monocrystalline
Monocrystalline
Same
Cell count
144
144
Same
Bifacial
No
Yes
No vs Yes
04
14,005 panels
Against the whole database
Efficiency
#51
vs
#1,570
AIKO-A665-MDE72Dw leads by 1,519 places
Power density
#42
vs
#1,689
AIKO-A665-MDE72Dw leads by 1,647 places
Heat behaviour
#511
vs
#2,165
AIKO-A665-MDE72Dw leads by 1,654 places
Weight
#3,172
vs
#7,135
AIKO-A665-MDE72Dw leads by 3,963 places
Warranty
#21
vs
#21
Tied - the same position in the database
Overall
#414
vs
#2,742
AIKO-A665-MDE72Dw leads by 2,328 places
05
Open the full database
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JA Solar JAM72D40-610/LB vs JA Solar JAM72D42-650/LB
7 differences, the largest is rated power
06
Written summary
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07
Questions about this pairing
Which panel is better: AIKO AIKO-A665-MDE72Dw or JA Solar JAM72D40-610/LB?
According to our database: AIKO AIKO-A665-MDE72Dw has higher module efficiency (24.60% vs 23.10%); AIKO AIKO-A665-MDE72Dw tolerates heat better (temp coeff -0.260%/°C vs -0.290%/°C). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of AIKO AIKO-A665-MDE72Dw and JA Solar JAM72D40-610/LB?
AIKO AIKO-A665-MDE72Dw has a module efficiency of 24.60%, while JA Solar JAM72D40-610/LB is 23.10%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A665-MDE72Dw use vs JA Solar JAM72D40-610/LB?
AIKO AIKO-A665-MDE72Dw uses Back Contact cells; JA Solar JAM72D40-610/LB uses TOPCon. 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 AIKO AIKO-A665-MDE72Dw and JA Solar JAM72D40-610/LB?
AIKO AIKO-A665-MDE72Dw has a 30 years power warranty; JA Solar JAM72D40-610/LB 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.
Are AIKO AIKO-A665-MDE72Dw and JA Solar JAM72D40-610/LB bifacial panels?
JA Solar JAM72D40-610/LB is bifacial (captures light from both faces); AIKO AIKO-A665-MDE72Dw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Shop prices: See 170 AIKO offers · See 391 JA 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.