JA SOLAR 615W JAM66D45-615/LB SF BIFACIAL

JA SOLAR 615W JAM66D45-615/LB SF BIFACIAL Product Description & Key Features 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. Technical Specifications (Typical / Manufacturer STC) 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) What This Means in Real Use 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.