JA Solar 615W N-Type Bifacial Double Glass Solar Panel

JA Solar 615W N-Type Bifacial Double Glass Solar Panel

The JAM66D45-615/LB is a high-output JA Solar DeepBlue 4.0 Pro photovoltaic module designed for demanding residential, commercial and large-scale solar installations. It combines N-type mono cells, MBB half-cell technology, bifacial generation and double-glass construction to deliver strong conversion efficiency and dependable long-term performance.

With a rated front-side output of 615W and module efficiency of 22.8%, this panel helps installers achieve more array capacity from the available mounting area. Its bifacial design can also generate energy from sunlight reflected onto the rear of the module when installed above a suitably reflective surface with adequate rear clearance.

N-Type Bifacial Technology

JA Solar’s N-type cell platform is designed for low light-induced degradation, improved temperature performance and reliable output over the service life of the module. The multi-busbar half-cell layout shortens current paths and helps the panel maintain effective energy conversion across changing solar conditions.

The bifacial design can raise rated output to approximately 664W under the datasheet’s 10% rear-irradiation test condition. Actual rear-side gain depends on the mounting height, surface reflectivity, row spacing, shading and site conditions and is not guaranteed for every installation.

Double-Glass Construction

The module uses 2.0mm front glass / 2.0mm back glass. This double-glass construction protects the solar cells from environmental exposure and provides a robust format for long-term outdoor operation. The module is fitted with an IP68 junction box with 3 diodes and supports a maximum system voltage of 1500V DC.

Electrical Performance

• Rated maximum power: 615W
• Module efficiency: 22.8%
• Open-circuit voltage (Voc): 48.30V
• Maximum-power voltage (Vmp): 39.96V
• Short-circuit current (Isc): 16.10A
• Maximum-power current (Imp): 15.39A
• Power tolerance: 0 to +3%
• Maximum series fuse: 35A
• Bifacial test output: 664W at 10% rear irradiation ratio

Mechanical Specifications

• Dimensions: 2382 × 1134 × 30mm
• Weight: 33.1kg
• Cell configuration: 132 (6 × 22)
• Junction box: IP68 junction box with 3 diodes
• Connector: QC 4.10-351 / MC4-EVO2A
• Maximum front static load: 5400Pa
• Maximum rear static load: 2400Pa

Performance in Changing Conditions

The 615W module has a maximum-power temperature coefficient of -0.290%/°C, helping quantify expected output changes as cell temperature rises. Its stated operating-temperature range is -40°C to +85°C, with a nominal operating cell temperature of 45 ± 2°C.

Suitable Applications

• Residential rooftop solar systems
• Commercial and industrial PV installations
• Ground-mounted solar arrays
• Flat-roof systems using approved mounting structures
• Projects designed to benefit from rear-side bifacial generation

Warranty and Long-Term Output

JA Solar states a 12-year product warranty and a 30-year linear power-output warranty for this N-type bifacial double-glass module. The published performance profile specifies no more than 1% degradation during the first year and 0.4% annual degradation thereafter. Warranty coverage remains subject to the manufacturer’s current terms, approved installation requirements and claim procedures.

Installation Notice

Solar modules must be installed by competent personnel using approved rails, clamps, electrical protection and earthing methods. String sizing must account for the module’s open-circuit voltage, temperature conditions and the connected inverter or charge controller limits. Solar mounting equipment, electrical components and installation are not included unless specifically quoted.