JinkoSolar 620W Tiger Neo N-type Bifacial Dual Glass Module (66HL4M-BDV)

Product Overview: The JinkoSolar JKM620N-66HL4M-BDV is a commercial-grade, ultra-high-efficiency N-type TOPCon bifacial solar module engineered to anchor premium utility-scale arrays and heavy-duty C&I (Commercial & Industrial) energy ecosystems. Leveraging Jinko's pioneering Tiger Neo N-type technology, this 620W powerhouse flawlessly bridges maximum power density with uncompromising structural resilience. Outfitted with dual-glass architectural protection and an advanced SMBB (Super Multi-Busbar) design, it delivers industry-leading bifaciality and exceptional low-light performance, standing as the definitive, bankable asset for future-proofed photovoltaic projects worldwide.

Electrical Characteristics (STC)

Standard Test Conditions: Irradiance $1000\text{ W/m}^2$, Cell Temperature 25°C, Air Mass AM1.5

 Operating Parameters & System Design

• Maximum System Voltage: 1500V DC (IEC)

• Maximum Series Fuse Rating: 35 A

• Operating Temperature Range: -40°C to +85°C

• Nominal Module Operating Temperature (NMOT): 45±2°C

• Bifaciality Factor: 80±5%

Temperature Coefficients

• Temperature Coefficient of : -0.29% / °C

• Temperature Coefficient of : -0.25% / °C

• Temperature Coefficient of : +0.045% / °C

 Mechanical Specifications

• Cell Orientation: 132 cells (6 × 22), half-cell configuration

• Cell Type: N-type monocrystalline silicon (HOT 2.0/3.0 TOPCon technology with SMBB multi-busbar setup)

• Dimensions: 2382 × 1134 × 30 mm

• Weight: 32.4 kg

• Front/Rear Glass: Dual-glass design, 2.0mm high-transmission, semi-tempered glass

• Frame: Anodized aluminum alloy

• Junction Box & Cables: IP68 rated, 4 $mm^2$ solar cables, standard lengths: (+) 400mm / (-) 200mm (custom lengths available upon request)

• Mechanical Load Capability: Front side Max. Static Load 5400 Pa (snow), Rear side Max. Static Load 2400 Pa (wind)

Warranty Terms

• Product Warranty: 12 Years (Materials & Workmanship)

• Performance Warranty: 30 Years (Linear Power Output; first-year degradation $\le$ 1.0%, annual degradation $\le$ 0.40% from year 2 to 30, ensuring $\ge$ 87.4% power retention in year 30)

• Next-Gen N-type TOPCon Efficiency & Bifacial Gain

  • Premium N-type Technology: Highly sophisticated N-type TOPCon cell architecture ensures higher power outputs, lower temperature coefficients, and drastically reduced LID (Light Induced Degradation) compared to traditional P-type modules.

  • Up to 25% Bifacial Energy Yield: Dual-glass design unlocks up to 75%-80% bifaciality factor, capturing reflected ambient light from the backside (albedo) to deliver up to 25% additional power gain depending on ground conditions (sand, concrete, gravel).

  • Super Multi-Busbar (SMBB) Design: Decreases the distance between busbars, effectively reducing current loss, optimizing internal optical trapping, and increasing overall module efficiency beyond 22.4%.

• 🛡️ Ruggedized Dual-Glass Reliability & Extreme Durability

  • Double Glass Structural Reinforcement: Built with premium double-glass packaging, providing uncompromising resistance against mechanical loads, PID (Potential Induced Degradation), and micro-cracking during long-distance transit or installation.

  • Severe Environmental Resilience: Certified to withstand harsh, high-salinity outdoor coastal environments, high-humidity tropical areas, and heavy monsoon rains, completely surpassing standard single-glass units.

  • Optimized Low Degradation: Backed by an industry-leading linear warranty, guaranteeing under 1% first-year degradation and an ultra-low annual degradation rate thereafter, securing maximum capital returns over a 30-year lifespan.

• 📉 High ROI & Optimized Balance of System (BOS)

  • Excellent Temperature Coefficient (-0.30%/°C): Low thermal sensitivity guarantees stable, superior power generation profiles even in hot desert, tropical, or high-ambient European summer climates.

  • 1500V System Voltage Compatibility: Fully rated for 1500VDC system strings, allowing installers to link more modules in series, which drastically reduces balance-of-system (BOS) cabling, combiner box, and labor costs.

  • High Bankability Rating: As a Tier-1 BloombergNEF (BNEF) flagship model, this module carries the highest bankability trust, facilitating frictionless project financing and approvals for international EPC firms.