The JA Solar DeepBlue 4.0 Pro JAM66D45 LB 640W is an advanced n-type bifacial dual-glass module engineered for premium commercial and utility-scale solar installations. Powered by high-efficiency Bycium+ n-type cells and 16-busbar half-cell architecture, it delivers superior energy yield, excellent temperature performance, and reduced light-induced degradation compared to traditional p-type modules. With module efficiencies reaching up to 23.7%, this high-power panel maximizes output while reducing BOS costs across large-scale projects.
This dual-glass design enhances durability, weather resistance, and longevity, making it exceptionally well-suited for harsh environmental conditions including high UV exposure, humidity, salt mist, ammonia, and sandy climates. Its bifacial capability increases energy generation by capturing reflected light from the rear side, providing additional yield for ground-mounted, tracker, and high-albedo installations. The module’s robust mechanical load ratings of 5400 Pa (front) and 2400 Pa (back) ensure reliable performance even in demanding environments.
Backed by a 12-year product warranty and a 30-year linear output warranty, the JAM66D45 LB 640W guarantees long-term stability with only 0.4% annual degradation after the first year. This combination of high efficiency, low degradation, and proven durability makes it an ideal choice for developers, EPCs, and investors seeking maximum lifetime energy production and best-in-class performance from JA Solar’s DeepBlue 4.0 Pro series.
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Please note that the actual power output and efficiency may differ slightly from the rated value due to standard manufacturing tolerances, binning variations, and environmental conditions.
Payment Methods
We offer flexible and secure payment options suitable for both retail customers and large-scale procurement:
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Bank Transfer (T/T) – preferred and widely used for international orders
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Cryptocurrencies (USDT / USDC / BTC / ETH) – fast, simple and highly secure for cross-border transactions
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Escrow services – available for high-value orders above $100,000 USD
All payments are processed through trusted financial institutions to ensure maximum security, transparency, and peace of mind.
Delivery & Shipping
We ship globally and work with reliable logistics partners to ensure safe, efficient, and timely delivery to any destination. Depending on your location and order size, we provide:
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Worldwide door-to-door delivery
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Air freight, sea freight, and railway transport
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Express shipping for urgent orders
Shipping timelines may vary depending on customs procedures, regional regulations, and global transportation conditions. We always strive to deliver as quickly as possible and keep you informed at every step.
Packaging & Safety
All products are professionally packaged to guarantee safe transport, including shock-absorbent materials, reinforced pallets, and factory-certified protection standards. This ensures products arrive in perfect condition, even on long-distance international shipments.
We value transparency and real customer experiences. To maintain the highest level of trust, all our reviews are hosted on an independent professional review platform, where every rating and comment is verified and submitted exclusively by 100% real customers.
View verified customer reviews here:
https://reviewglass.com/review/areasolar.com
We take customer feedback very seriously, as it helps us continuously improve our service, logistics, and product offering. Maintaining a high customer satisfaction rate is one of our core values — and we are committed to ensuring that every client receives reliable products and exceptional support.
We work directly with leading solar manufacturers and factories, enabling us to offer highly competitive prices, preferential terms, and flexible purchasing solutions for distributors, installers, EPC contractors, and large-scale investors.
Why choose us for wholesale?
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Direct partnerships with Tier-1 factories
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Preferential pricing on bulk orders
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Fast production allocation
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Customized offers for large projects
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Dedicated account manager for ongoing support
Logistics Advantages
Thanks to our strong global logistics network, we can provide:
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Optimized freight rates for sea, air, and land transport
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Consolidation services for mixed orders
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Reliable delivery timelines (subject to global or regional force majeure conditions)
Our long-standing partnerships with freight forwarders allow us to provide cost-effective shipping and smooth handling from factory to final destination.
For custom quotations or project-based requests, feel free to contact us anytime — we are highly flexible and will offer the best possible solution for your needs.
