15,375৳
This is a JA SOLAR 615W JAM66D45-615/LB SF BIFACIAL “DeepBlue 4.0 / 4.0 Pro” bifacial / dual‑glass lineup.
Uses n‑type monocrystalline half‑cells (sometimes labelled Mono PERC / Bycium+ / TOPCon depending on datasheet) for higher efficiency, lower degradation, better performance in low-light and heat.
Bifacial and dual‑glass construction (glass both front and back), which improves durability, mechanical robustness (snow/wind loads), and allows for rear-side light capture (bifacial yield boost) if installation permits (reflective ground, mounting height, etc.).
Made for utility‑scale, commercial, or large rooftop solar installations — where maximizing power per panel and long-term reliability matters most.
| Specification | Value |
|---|---|
| Model | JAM66D45‑615/LB |
| Rated Maximum Power (Pmax) | 615 W |
| Module Efficiency (STC) | ~22.8% |
| Cell Type | n-type monocrystalline half‑cells (Mono PERC / Bycium+ / TOPCon depending on variant) |
| Number of Cells | 132 (6 × 22 half‑cells) |
| Panel Dimensions | 2382 × 1134 × 30 mm |
| Weight | ~33.1 kg (some sources cite ~31.3 kg) |
| Glass / Construction | 2.0 mm tempered glass (front) + 2.0 mm tempered glass (back) — glass/glass module |
| Connector / Junction Box | MC4‑EVO2 (or QC 4.10‑351), Junction box IP68 rated, 3 diodes |
| Electrical (STC) | Vmp: ~ 39.96 V, Imp: ~ 15.39 A; Voc: ~ 48.30 V, Isc: ~ 16.10 A |
| Maximum System Voltage | 1500 V DC (common for utility‑scale strings) |
| Mechanical Load / Ratings | Front load (snow / static) ~ 5400 Pa, Rear load (wind/other) ~ |
| Operating Temperature Range | –40 °C to +85 °C (typical for large bifacial modules) |
| Bifaciality | ~ 80% ± 5% (rear‑side gain — depending on mounting and ground reflectivity) |
| Warranty | Typically 12‑year product warranty, 30‑year linear performance warranty (output degradation guarantee) |
High power density per panel: At 615 W and ~22.8 % efficiency, you get more energy per unit area compared to older 300–400 W panels — meaning fewer panels needed, lower structure cost, less roof/ground coverage.
Durability & longevity: Glass‑glass construction + robust frame + IP68 junction box + high mechanical load ratings make the panel more resistant to harsh weather (wind, pressure, environmental stress). Good for rooftops, ground‑mounted farms, or industrial setups.
Bifacial advantage: With rear‑side light capture, especially if installed over light/reflective ground (white roof, gravel, sand, light concrete), you can gain extra generation beyond the 615 W front‑side rating. This increases kWh per kWp overall yield, which improves return on investment (ROI).
Thermal and environmental resilience: The n‑type cell technology and favorable temperature coefficients help maintain performance even under hot climate and high irradiance — useful for regions like Bangladesh.
Long‑term output stability: With a 30‑year performance warranty and lower degradation (n‑type typically degrades slower than older p‑type), the system remains productive for decades, reducing long‑term risk.
