Solar panel from JA Solar JAM66D45-605/LB (BIF, DG) 605W n-type TOPCon

JA Solar JAM66D45-605/LB Solar Module 605 Watt Silver/white n-type TOPCon Bifacial Glass-Glass 12 Years Product Warranty

Name: JA Solar JAM66D45-605/LB Solar Module 605 Watt Silver/white n-type TOPCon Bifacial Glass-Glass 12 Years Product Warranty
SKU: JAM66D45-605/LB
Availability: InStock

JA Solar

The JA Solar JAM66D45-605/LB is a bifacial double-glass solar module built with n-Type TOPCon cells, delivering 605 Wp nominal power and a module efficiency of ≈22.4%; it measures 2382 × 1134 × 30 mm and weighs ~33.1 kg.
Designed for commercial and utility-scale use, it supports 1500 V system voltage, is rated for ~5400 Pa snow and ~2400 Pa wind loads, and comes with 12 years product workmanship plus a 30-year power warranty (≈87.4% at year 30).

Show more product data

Quantity	Minimum	Sales unit	Escrow	Reviews	Availability	Price per Wp	Total price
2,880 pcs. 1,742 kWp	720 pcs. 436 kWp	Pallet 36 pcs.		0 Ratings	In stock, NL ID: 238747	Prices for members only	Register for free
2,520 pcs. 1,525 kWp	360 pcs. 218 kWp	Pallet 36 pcs.		0 Ratings	In stock, NL ID: 227293	Prices for members only	Register for free

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Performance data

Nominal Power	605 W
Cell type	n-type TOPCon
Number of cells	132
Cell Format	n/a
Module efficiency	22,40 %
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

English

Data Sheet
Guarantee
Manual
Other

JA Solar JAM66D45-605/LB – 605 Wp, n-Type TOPCon (Bifacial Double-Glass)

The JA Solar JAM66D45-605/LB is a high-power bifacial double-glass module built on n-type TOPCon cells with a nominal output of 605 Wp, a module efficiency of ≈22.4%, dimensions of 2382 × 1134 × 30 mm and a module weight of ~33.1 kg. It is designed for commercial and utility installations with 1500 V system voltage, a low temperature coefficient (≈ −0.29%/°C), rugged mechanical ratings (typical 5400 Pa positive / 2400 Pa negative) and an industry warranty package of 12 years product workmanship plus 30 years power warranty (approx. 87.4% at year 30).

✅ Advantages for Installers

• High power per module — 605 Wp: maximizes energy yield and lowers BOS cost per kWp.
• Bifacial double-glass design: enables rear-side generation (site-dependent bifacial gain) for higher total energy output.
• n-Type TOPCon cells: low degradation (excellent LID/LeTID behaviour) and strong performance in real-world conditions.
• Robust mechanical ratings: tested for high snow and wind loads (typ. 5400 Pa / 2400 Pa) — suitable for harsh sites.
• High system voltage (1500 V): allows longer strings and lower BOS/inverter costs for utility projects.
• Installer-friendly specs: standard IP68 junction box, MC4-compatible connectors and typical 4.0 mm² cable for fast, reliable connections.
• Secure warranty package: 12 years product workmanship + 30 years power warranty reduces lifecycle risk.

Technical Data — JA Solar JAM66D45-605/LB (Key Specs)

• Nominal power (Pmax): 605 Wp.
• Cell technology: n-Type TOPCon (bifacial cell layout).
• Module design: Bifacial, Double-Glass (glass-glass).
• Module efficiency: ≈ 22.4% (605 W bin).
• Dimensions: 2382 × 1134 × 30 mm.
• Weight: ~33.1 kg.
• Temperature coefficients: Pmax ≈ −0.29%/°C, Voc ≈ −0.25%/°C, Isc ≈ +0.045%/°C.
• Mechanical load: Snow ~5400 Pa (positive) | Wind ~2400 Pa (negative).
• Electrical: Max system voltage 1500 V DC | Series fuse rating 35 A | Power tolerance typically 0 ~ +3% / 0 ~ +5 W depending on region/bin.
• Junction box / connectors: IP68 junction box, 3 bypass diodes, MC4/MC4-EVO2 compatible; cable 4.0 mm².
• Warranty & degradation: 12 years product workmanship | 30 years power warranty (~87.4% at year 30); typical ~1% first-year loss and ~0.40% p.a. thereafter.

Secure your project offer

The JAM66D45-605/LB pairs high per-module power (605 Wp), proven n-type TOPCon reliability and a bifacial glass-glass build — ideal for commercial and utility projects targeting low LCOE and long-term yield. Purchase securely and transparently via SolarTraders through certified distributors with buyer protection. Register now and request a customized 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.