JA Solar 440W N-Type Double-Glass Bifacial Solar Module

What it is: A high-efficiency, durable panel suited for residential rooftops as well as commercial and small utility projects.

Key specs:

• Power output: 440W | Module efficiency: up to 22.3%
• Cell technology: N-Type Bycium+ | Design: double-glass bifacial
• Bifaciality factor: 80% ±10% (rear-side energy gain)
• Max system voltage: 1,500V
• Temperature coefficient: -0.29%/°C (Pmax)

Mechanical ratings: Front snow load 5,400 Pa | Rear wind load 2,400 Pa — built for harsh climates

Built for: Residential rooftops, commercial installations, distributed generation, ground-mounted arrays, agricultural and community solar

Why it matters:

• N-Type Bycium+ cells = higher efficiency, lower degradation, better low-light/high-temp performance than P-type
• Bifacial design = extra output from reflected light on the rear side
• Double-glass construction = better moisture/fire resistance, lower microcrack risk, longer lifespan
• 1500V compatibility = longer strings, less wiring, lower install costs
• Certified IEC & UL

Warranty: 15 years product | 30 years linear power performance

• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
• If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.