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JAM72D42 LB

Looking to get the absolute most out of your large-scale solar project? The JA Solar JAM72D42 LB series delivers serious performance you can count on. These high-efficiency panels use cutting-edge n-type TOPCon cell technology combined with a tough double-glass, bifacial design to push power outputs up to 640W (and module efficiencies beyond 21.8–22.5%, depending on the exact model in the range). What really sets them apart is the bifacial capability: they capture sunlight on both the front and the back, so you can generate extra energy—especially when installed over reflective surfaces like white gravel, rooftops, or snow. That means noticeably higher overall yield without needing more space.

They shine even in challenging conditions thanks to excellent low-light performance, a stellar temperature coefficient of -0.30%/°C (less power drop when things heat up), and outstanding resistance to environmental wear like salt mist, ammonia, sand, and heavy mechanical loads. Built to last, these modules come with full international certifications, a solid 12-year product warranty, and an industry-leading 30-year linear performance guarantee—giving you peace of mind and strong returns over decades of operation.

Brand

JA Solar JAM66D45 LB n-type Double Glass Bifacial Modules

Part Number

JAM72D42-615/LB

JAM72D42-620/LB

JAM72D42-625/LB

JAM72D42-630/LB

JAM72D42-635/LB

JAM72D42-640/LB

Peak Power Watts-PMAX(Wp)*

615

620

625

630

635

640

Maximum Power Voltage-VMPP (V)

43.31

43.51

43.71

43.9

44.1

44.29

Maximum Power Current-IMPP (A)

14.2

14.25

14.3

14.35

14.4

14.45

Open Circuit Voltage-VOC (V)

51.87

52.07

52.27

52.47

52.67

52.87

Short Circuit Current-ISC (A)

15.06

15.11

15.16

15.21

15.26

15.31

Module Efficienvy (%)

22

22.2

22.4

22.5

22.7

22.9

NOCT (Nominal Operating Cell Temperature)

45 ± 2 °C

45 ± 2 °C

45 ± 2 °C

45 ± 2 °C

45 ± 2 °C

45 ± 2 °C

Temperature Coefficient of PMAX

– 0.29% /°C

– 0.29% /°C

– 0.29% /°C

– 0.29% /°C

– 0.29% /°C

– 0.29% /°C

Temperature Coefficient of VOC

– 0.26% /°C

– 0.26% /°C

– 0.26% /°C

– 0.26% /°C

– 0.26% /°C

– 0.26% /°C

Temperature Coefficient of ISC

0.046% /°C

0.046% /°C

0.046% /°C

0.046% /°C

0.046% /°C

0.046% /°C

Operating Temperature

-40~+85°C

-40~+85°C

-40~+85°C

-40~+85°C

-40~+85°C

-40~+85°C

Maximum System Voltage

1500V DC

1500V DC

1500V DC

1500V DC

1500V DC

1500V DC

Max Series Fuse Rating

30 A

30 A

30 A

30 A

30 A

30 A

Solar Cells

n-type Double Glass Bifacial Modules

n-type Double Glass Bifacial Modules

n-type Double Glass Bifacial Modules

n-type Double Glass Bifacial Modules

n-type Double Glass Bifacial Modules

n-type Double Glass Bifacial Modules

No. of cells

144 cells

144 cells

144 cells

144 cells

144 cells

144 cells

Module

Dimensions

2465×1134×30 mm

2465×1134×30 mm

2465×1134×30 mm

2465×1134×30 mm

2465×1134×30 mm

2465×1134×30 mm

Weight

34.6 kg

34.6 kg

34.6 kg

34.6 kg

34.6 kg

34.6 kg

Front Glass

2.0 mm glass

2.0 mm glass

2.0 mm glass

2.0 mm glass

2.0 mm glass

2.0 mm glass

Back Glass

2.0 mm

2.0 mm

2.0 mm

2.0 mm

2.0 mm

2.0 mm

J-Box

IP68 rated, 3 diodes

IP68 rated, 3 diodes

IP68 rated, 3 diodes

IP68 rated, 3 diodes

IP68 rated, 3 diodes

IP68 rated, 3 diodes

Cables

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Portrait: 300 m (+)/400 mm(-)

Landscape:  1500 mm (+) /1500 mm(-)

Connector

QC 4.10-351/MC4EVO2A

QC 4.10-351/MC4EVO2A

QC 4.10-351/MC4EVO2A

QC 4.10-351/MC4EVO2A

QC 4.10-351/MC4EVO2A

QC 4.10-351/MC4EVO2A

Packaging

36 pcs/ Pallet, 576 pcs / 40HQ Container

36 pcs/ Pallet, 576 pcs / 40HQ Container

36 pcs/ Pallet, 576 pcs / 40HQ Container

36 pcs/ Pallet, 576 pcs / 40HQ Container

36 pcs/ Pallet, 576 pcs / 40HQ Container

36 pcs/ Pallet, 576 pcs / 40HQ Container

Bifaciality

80 ± 10%

80 ± 10%

80 ± 10%

80 ± 10%

80 ± 10%

80 ± 10%

Rated Max Power (Pmax) (W)

664

670

675

680

686

691

Irradiation Ratio (Rear/Front)

10 %

10 %

10 %

10 %

10 %

10 %

Other Specifications

·        Higher Power and Efficiency

·        High Density

·        n type with very lower LID

·        Better low irradiance response

·        Better temperature coefficient

Comprehensive Products and System Certificates

·        IEC 61215, IEC 61730, UL 61215, UL 61730

·        ISO 9001:2015 Quality management systems

·        ISO 14001: 2015 Environmental management systems

·        ISO 45001: 2018 Occupational health and safety management systems

·        IEC62941: 2019 Terrestrial photovoltaic (PV) modules-Quality system for PV module manufacturing

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