SKYWORTH High Efficiency N-Type Series-66 | Bifacial N-Type Solar Module (620-640W)
A bifacial dual-glass module built on new-generation N-Type silicon wafer technology, delivering 620-640 W of output at up to 23.7% efficiency. A bifaciality rate of 80% yields up to 10% additional energy versus conventional modules, with strong anti-PID performance and reliable output in low-light conditions.
Key Highlights
- Bifacial N-Type technology (bifaciality up to 80%): The rear side captures reflected light for up to 10% additional generation.
- Industry-leading anti-PID performance: First-year degradation <= 1%, then just 0.4% per year from years 2-30.
- Excellent low-light response: Strong output at dawn, dusk and on overcast days.
- Global-standard warranty: 15-year product warranty and 30-year linear power output warranty.
Technical Specifications
- Module Types: QM210THCD-620-66 to QM210THCD-640-66 (620 W – 640 W)
- Module Efficiency: 23.0% – 23.7%
- Cell Type & Count: N-Type monocrystalline, 132 cells (66×2)
- Bifaciality: 80% plus/minus 5%
- Voltage at Max. Power (Vmp): 41.40 V – 42.60 V
- Current at Max. Power (Imp): 14.99 A – 15.03 A
- Open-Circuit Voltage (Voc): 49.60 V – 50.80 V
- Short-Circuit Current (Isc): 15.91 A – 15.95 A
- Glass Construction: Dual tempered glass, 2.0 mm; hail and wind-load resistant
- Dimensions & Weight: 2382 x 1134 x 30 mm | 32.5 kg
- Junction Box: IP68 rated (3 diodes)


