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AIKO-A480-MAH54Mw vs JAM66D45-620/LB 2 of 19 identical Swap Change panels

AIKO AIKO-A480-MAH54Mw vs JA Solar JAM66D45-620/LB

AIKO AIKO-A480-MAH54Mw
AIKO-A480-MAH54Mw
480 Wp 24.10 % Back Contact
Open panel page Datasheet PDF
VS
JA Solar JAM66D45-620/LB
JAM66D45-620/LB
620 Wp 23.00 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

AIKO-A480-MAH54Mw leads on the differences that matter

The largest is module efficiency: 1.10 pp more efficient. 2 of 19 comparable parameters are identical.

See all 17 differences
How alike are they
2 of 19 comparable
parameters are identical
identical differs
01

What actually differs

17 of 19 parameters
Parameter AIKO-A480-MAH54Mw JAM66D45-620/LB Difference
Module efficiency 24.10 % 23.00 % 1.10 pp more efficient
Rated power 480 Wp 620 Wp 140 W more power
Power density 240.9 Wp/m² 229.5 Wp/m² 11.4 Wp/m² higher
Temperature coefficient -0.260 %/°C -0.290 %/°C 0.030 %/°C better in heat
Weight 21.5 kg 33.1 kg 11.6 kg lighter
Weight per kWp 44.8 kg/kWp 53.4 kg/kWp 8.6 kg/kWp lighter
Product warranty 25 yrs 12 yrs 13 yrs longer
Open-circuit voltage 41.30 V 48.50 V 7.20 V apart
Module area 1.992 m² 2.701 m² 0.709 m² apart
Short-circuit current 14.38 A 16.13 A 1.75 A apart
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Annual degradation 0.35 %/yr 0.40 %/yr 0.05 %/yr slower
Voltage at max power 34.86 V 40.21 V 5.35 V apart
Cell count 108 132 24 cells apart
Current at max power 13.78 A 15.42 A 1.64 A apart
Bifacial No Yes No vs Yes
Dimensions 1757x1134x30 mm 2382x1134x30 mm 1757x1134x30 mm vs 2382x1134x30 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
AIKO-A480-MAH54Mw
16,230 kWh
JAM66D45-620/LB
20,802 kWh
Lifetime gap
4,572 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario AIKO-A480-MAH54Mw JAM66D45-620/LB
Standard test conditions 25 °C 100.0% of rated power 480 W 620 W
Cool, bright day 40 °C 95.7% of rated power 461 W 593 W
Typical summer roof 55 °C 91.3% of rated power 443 W 566 W
Hot roof 70 °C 87.0% of rated power 424 W 539 W
03

Full specification

Parameter AIKO-A480-MAH54Mw JAM66D45-620/LB Difference
Power and efficiency
Rated power 480 Wp 620 Wp +140 W for JAM66D45-620/LB
Module efficiency 24.10 % 23.00 % +1.10 pp for AIKO-A480-MAH54Mw
Power density 240.9 Wp/m² 229.5 Wp/m² +11.4 Wp/m² for AIKO-A480-MAH54Mw
Open-circuit voltage 41.30 V 48.50 V 7.20 V apart
Voltage at max power 34.86 V 40.21 V 5.35 V apart
Short-circuit current 14.38 A 16.13 A 1.75 A apart
Current at max power 13.78 A 15.42 A 1.64 A apart
Temperature
Temperature coefficient -0.260 %/°C -0.290 %/°C +0.030 %/°C for AIKO-A480-MAH54Mw
Mechanical
Dimensions 1757x1134x30 mm 2382x1134x30 mm 1757x1134x30 mm vs 2382x1134x30 mm
Module area 1.992 m² 2.701 m² 0.709 m² apart
Weight 21.5 kg 33.1 kg -11.6 kg for AIKO-A480-MAH54Mw
Weight per kWp 44.8 kg/kWp 53.4 kg/kWp -8.6 kg/kWp for AIKO-A480-MAH54Mw
Warranty and degradation
Product warranty 25 yrs 12 yrs +13 yrs for AIKO-A480-MAH54Mw
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.35 %/yr 0.40 %/yr -0.05 %/yr for AIKO-A480-MAH54Mw
Technology
Cell technology Back Contact TOPCon Back Contact vs TOPCon
Cell type Monocrystalline Monocrystalline Same
Cell count 108 132 24 cells apart
Bifacial No Yes No vs Yes
04

Against the whole database

14,005 panels
Efficiency
#219 vs #1,919
AIKO-A480-MAH54Mw leads by 1,700 places
Power density
#230 vs #2,191
AIKO-A480-MAH54Mw leads by 1,961 places
Heat behaviour
#511 vs #2,165
AIKO-A480-MAH54Mw leads by 1,654 places
Weight
#535 vs #7,289
AIKO-A480-MAH54Mw leads by 6,754 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#3,227 vs #2,537
JAM66D45-620/LB leads by 690 places
05

More useful comparisons

Open the full database
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A485-MAH54Mw
One difference: module efficiency
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A475-MAH54Mw
One difference: module efficiency
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A470-MAH54Mw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A465-MAH54Mw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A460-MAH54Mw
3 differences, the largest is module efficiency
Same series, other bin
AIKO AIKO-A480-MAH54Mw vs AIKO AIKO-A455-MAH54Mw
5 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: AIKO AIKO-A480-MAH54Mw or JA Solar JAM66D45-620/LB?
According to our database: AIKO AIKO-A480-MAH54Mw has higher module efficiency (24.10% vs 23.00%); AIKO AIKO-A480-MAH54Mw 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-A480-MAH54Mw and JA Solar JAM66D45-620/LB?
AIKO AIKO-A480-MAH54Mw has a module efficiency of 24.10%, while JA Solar JAM66D45-620/LB is 23.00%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does AIKO AIKO-A480-MAH54Mw use vs JA Solar JAM66D45-620/LB?
AIKO AIKO-A480-MAH54Mw uses Back Contact cells; JA Solar JAM66D45-620/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-A480-MAH54Mw and JA Solar JAM66D45-620/LB?
AIKO AIKO-A480-MAH54Mw has a 30 years power warranty; JA Solar JAM66D45-620/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-A480-MAH54Mw and JA Solar JAM66D45-620/LB bifacial panels?
JA Solar JAM66D45-620/LB is bifacial (captures light from both faces); AIKO AIKO-A480-MAH54Mw is monofacial. Bifacial panels work best on ground mounts or raised structures with a light-coloured surface underneath.
Compare AIKO and JA Solar as manufacturers Portfolio, efficiency, cell technologies and warranty terms

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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.