Tongwei TWMND?78HD 640Wp - Attention: pallet transport only!

This high-performance N-type bifacial module with double-glass construction and a silver frame offers high power per unit area , low degradation, and the potential for increased production through back-side reflection. Ideal for utility-scale installations and PV farms where long-term stability, mechanical durability, and a lower LCOE are key considerations when using bifacial technology.

• Nominal power: 640 Wp (STC), tolerance 0/+3% .
• Cells and technology: N-type monocrystalline (TNC), half-cell; TOPCon/N-type, bifacial (double glass) module.
• Construction: 2.0mm double glass front/back, anodized silver aluminum frame , IP68 junction box, 3 diodes.
• Dimensions and weight: 2465 × 1134 × 30 mm , weight ~ 33.8 kg .
• Efficiency and bifacial gain: efficiency ~ 22.9% (640 Wp); bifaciality ~ 80±5% — backside gain dependent on albedo (for example +5/15/25% gives ~651/713/775 Wp respectively).
• Temperature and electrical parameters: power factor -0.28%/}C , Voc ?57.4 V, Impp ?13.28 A, max. system 1500 V DC , max. series fuse 30 A.
• Mechanical loads: wind/snow resistance 2400 / 5400 Pa ; hail resistance in accordance with IEC.
• Warranty and degradation: product warranty ~ 12 years ; linear power loss: ?1% first year, ~?0.4% per year; approx. 87.4% power after 30 years.

Pallet: 36 pieces. Freight forwarding priced individually, or personal collection.