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605/MB vs 600/MB 18 of 19 identical Swap Change panels

JA Solar JAM72D40-605/MB vs JA Solar JAM72D40-600/MB

JA Solar JAM72D40-605/MB
JAM72D40-605/MB
605 Wp 23.40 % TOPCon Bifacial
Open panel page Datasheet PDF
VS
JA Solar JAM72D40-600/MB
JAM72D40-600/MB
600 Wp 23.20 % TOPCon Bifacial
Open panel page Datasheet PDF
The verdict

605/MB leads on the differences that matter

The largest is module efficiency: 0.20 pp more efficient. 18 of 19 comparable parameters are identical.

See the one difference
How alike are they
18 of 19 comparable
parameters are identical
identical differs
01

What actually differs

1 of 19 parameters
Parameter 605/MB 600/MB Difference
Module efficiency 23.40 % 23.20 % 0.20 pp more efficient
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 (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
605/MB
20,299 kWh
600/MB
20,131 kWh
Lifetime gap
168 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 605/MB 600/MB
Standard test conditions 25 °C 100.0% of rated power 605 W 600 W
Cool, bright day 40 °C 95.7% of rated power 579 W 574 W
Typical summer roof 55 °C 91.3% of rated power 552 W 548 W
Hot roof 70 °C 87.0% of rated power 526 W 522 W
03

Full specification

Parameter 605/MB 600/MB Difference
Power and efficiency
Rated power 605 Wp 600 Wp Effectively the same
Module efficiency 23.40 % 23.20 % +0.20 pp for 605/MB
Power density 234.2 Wp/m² 232.3 Wp/m² Effectively the same
Open-circuit voltage 53.00 V 52.79 V Effectively the same
Voltage at max power 45.05 V 44.85 V Effectively the same
Short-circuit current 14.09 A 14.04 A Effectively the same
Current at max power 13.43 A 13.38 A Effectively the same
Temperature
Temperature coefficient -0.290 %/°C -0.290 %/°C Same
Mechanical
Dimensions 2278x1134x30 mm 2278x1134x30 mm Same
Module area 2.583 m² 2.583 m² Same
Weight 31.8 kg 31.8 kg Same
Weight per kWp 52.6 kg/kWp 53.0 kg/kWp Effectively the same
Warranty and degradation
Product warranty 12 yrs 12 yrs Same
Performance warranty 30 yrs 30 yrs Same
Annual degradation 0.40 %/yr 0.40 %/yr Same
Technology
Cell technology TOPCon TOPCon Same
Cell type Monocrystalline Monocrystalline Same
Cell count 144 144 Same
Bifacial Yes Yes Same
04

Against the whole database

14,005 panels
Efficiency
#882 vs #1,306
605/MB leads by 424 places
Power density
#863 vs #1,252
605/MB leads by 389 places
Heat behaviour
#2,165 vs #2,165
Tied - the same position in the database
Weight
#6,188 vs #6,725
605/MB leads by 537 places
Warranty
#21 vs #21
Tied - the same position in the database
Overall
#2,560 vs #2,960
605/MB leads by 400 places
05

More useful comparisons

Open the full database
Same series, other bin
JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-625/MB/1500V
12 differences, the largest is module efficiency
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JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-620/MB/1500V
12 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-615/MB/1500V
12 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-610/MB/1500V
10 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-605/MB/1500V
10 differences, the largest is module efficiency
Same series, other bin
JA Solar JAM72D40-605/MB vs JA Solar JAM78D40-600/MB/1500V
10 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: JA Solar JAM72D40-605/MB or JA Solar JAM72D40-600/MB?
According to our database: JA Solar JAM72D40-605/MB has higher module efficiency (23.40% vs 23.20%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of JA Solar JAM72D40-605/MB and JA Solar JAM72D40-600/MB?
JA Solar JAM72D40-605/MB has a module efficiency of 23.40%, while JA Solar JAM72D40-600/MB is 23.20%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does JA Solar JAM72D40-605/MB use vs JA Solar JAM72D40-600/MB?
JA Solar JAM72D40-605/MB uses TOPCon cells; JA Solar JAM72D40-600/MB 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 JA Solar JAM72D40-605/MB and JA Solar JAM72D40-600/MB?
JA Solar JAM72D40-605/MB has a 30 years power warranty; JA Solar JAM72D40-600/MB 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 JA Solar JAM72D40-605/MB and JA Solar JAM72D40-600/MB bifacial panels?
Both JA Solar JAM72D40-605/MB and JA Solar JAM72D40-600/MB are bifacial - they capture reflected light from the ground, which can add 5-15% more annual energy on ground-mount or elevated rooftop installations with a light surface beneath.

Shop prices: 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.