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JA Solar JAM66D45-620/LB Solar Module 620 Watt Silver/white n-type TOPCon Bifacial Glass-Glass 12 Years Product Warranty
The JA Solar JAM66D45-620/LB is a 620 Wp bifacial glass-glass module built with 132 n-Type TOPCon cells, designed for high area efficiency and reduced degradation for long-term yield. Measuring 2382 × 1134 × 30 mm and weighing ~33.1 kg, it offers robust mechanical ratings (snow 5,400 Pa / wind 2,400 Pa), typical 1500 V system voltage and commercial warranties (≈12 years product warranty and 30 years performance to ~87%), making it ideal for utility and large commercial projects.
| Quantity | Minimum | Sales unit | Escrow | Reviews | Availability | Price per Wp | Total price |
|---|---|---|---|---|---|---|---|
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518,400
pcs.
321,408 kWp
|
720
pcs.
446 kWp
|
Container
720 pcs.
|
31
Ratings
|
In stock,
PT
ID: 238107
|
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720
pcs.
446 kWp
|
720
pcs.
446 kWp
|
Container
720 pcs.
|
24
Ratings
|
In stock,
NL
ID: 228953
|
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2,160
pcs.
1,339 kWp
|
720
pcs.
446 kWp
|
Container
720 pcs.
|
73
Ratings
|
In stock,
NL
ID: 225510
|
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1,284
pcs.
796 kWp
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12
pcs.
7 kWp
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Piece |
155
Ratings
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In stock,
DE
ID: 217852
|
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108
pcs.
67 kWp
|
36
pcs.
22 kWp
|
Pallet
36 pcs.
|
73
Ratings
|
In stock,
CZ
ID: 224049
|
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Performance data
| Nominal Power | 620 W |
| Cell type | n-type TOPCon |
| Number of cells | 132 |
| Cell Format | n/a |
| Module efficiency |
Very high efficiency
22,95
%
|
| Power tolerance | 0 - 3 % |
| Temp. Coeff. of P(max) | -0,30 %/°C |
| System voltage | 1500 V |
Packing
| Pieces per pallet | 36 |
| Pieces per 40 | 720 |
Measurements
| Length | 2382 mm |
| Width | 1134 mm |
| Frame | 30 mm |
| Weight | 33.1 kg |
Other features
| Frame/Backsheet | silver/white |
| Bifacial | Yes |
| Module construction | Glass/glass |
| Cable length + / - | 1500 mm / 1500 mm |
| Connector Type | Stäubli MC4-EVO2 |
| Snow load | 5.400 Pa |
| Wind load | 2.400 Pa |
Manufacturer warranty
| Product warranty | 12 years |
| Warranty | 30 years on 87% of nominal power |
Certificates
CE
IEC 61215 - Design Qualification and Type Approval
IEC 61730 - Safety Qualification
ISO 14001
ISO 45001
ISO 9001
IEC 61215 - Design Qualification and Type Approval
IEC 61730 - Safety Qualification
ISO 14001
ISO 45001
ISO 9001
English
| Data Sheet |  |
| Guarantee | |
| Manual | |
| Other | |
JA Solar JAM66D45-620/LB – 620 Wp, n-Type TOPCon
The JA Solar JAM66D45-620/LB is a 620 Wp bifacial glass-glass module built with 132 n-Type TOPCon cells, delivering high area efficiency and long-term stability. The module measures 2382 × 1134 × 30 mm, weighs ~33.1 kg, features robust mechanical ratings (snow 5,400 Pa, wind 2,400 Pa), and is supplied with commercial warranties (typically 12 years product warranty and a 30-year performance warranty to ~87%), making it a strong choice for utility and large commercial PV projects.
✅ Benefits for installers
• High power output — 620 Wp: more kW per module reduces mounting, labour and BOS costs.
• Excellent area efficiency: n-Type TOPCon cell technology gives high module efficiency and better yield per m².
• n-Type TOPCon cells: reduced LID and improved low-irradiance performance for reliable long-term energy production.
• Bifacial glass-glass construction: additional rear-side generation on reflective surfaces and superior mechanical longevity.
• Robust mechanical specs: high snow (5,400 Pa) and wind (2,400 Pa) ratings for demanding climates.
• Commercial warranties & certifications: multi-year product and linear performance guarantees plus standard IEC/ISO certifications for secure procurement via SolarTraders.
• Excellent area efficiency: n-Type TOPCon cell technology gives high module efficiency and better yield per m².
• n-Type TOPCon cells: reduced LID and improved low-irradiance performance for reliable long-term energy production.
• Bifacial glass-glass construction: additional rear-side generation on reflective surfaces and superior mechanical longevity.
• Robust mechanical specs: high snow (5,400 Pa) and wind (2,400 Pa) ratings for demanding climates.
• Commercial warranties & certifications: multi-year product and linear performance guarantees plus standard IEC/ISO certifications for secure procurement via SolarTraders.
Technical data — JA Solar JAM66D45-620/LB (key values)
• Rated power (Pmax): 620 Wp.
• Cell type / count: n-Type TOPCon — 132 cells.
• Module design: Bifacial, Glass/Glass (double glass).
• Typical module dimensions: 2382 × 1134 × 30 mm.
• Typical weight: ~33.1 kg.
• Mechanical loads: Snow 5,400 Pa (front) | Wind 2,400 Pa (back).
• Max. system voltage: 1500 V DC (typical for this series).
• Connector / cable: Stäubli MC4-EVO2 / equivalent; junction box rated IP68 (typical).
• Warranties: ~12 years product warranty | ~30 years performance warranty to 87%.
• Certifications: CE, IEC 61215 / IEC 61730 and applicable ISO standards.
• Cell type / count: n-Type TOPCon — 132 cells.
• Module design: Bifacial, Glass/Glass (double glass).
• Typical module dimensions: 2382 × 1134 × 30 mm.
• Typical weight: ~33.1 kg.
• Mechanical loads: Snow 5,400 Pa (front) | Wind 2,400 Pa (back).
• Max. system voltage: 1500 V DC (typical for this series).
• Connector / cable: Stäubli MC4-EVO2 / equivalent; junction box rated IP68 (typical).
• Warranties: ~12 years product warranty | ~30 years performance warranty to 87%.
• Certifications: CE, IEC 61215 / IEC 61730 and applicable ISO standards.
Secure your project offer
The JAM66D45-620/LB pairs very high output (620 Wp), n-Type TOPCon efficiency and a durable bifacial glass-glass design — ideal when you want to maximise yield and lifetime for large commercial or utility installations. Buy securely and transparently via SolarTraders (certified EU distributors, buyer protection, price comparison). Register now and request a customised project quote.
JA Solar
JA Solar Modules – Efficiency and Performance for Professionals
JA Solar is one of the world’s largest manufacturers of photovoltaic modules. Their advanced cell technology ensures high efficiency, stable yields, and long lifespan – suitable for residential rooftops as well as large-scale solar plants. With best value pricing, fast availability, and attractive B2B conditions, JA Solar is the strong choice for professional solar installers.
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