JA Solar JAM66D45 LB 605W N-Type Double Glass Bifacial Module(0.395/W)
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What it is, and what it is for
The JA Solar JAM66D45 LB 605W is a high-performance N-Type double glass bifacial solar panel designed for commercial, industrial, and utility-scale solar installations. Built on JA Solar’s DeepBlue 4.0 Pro platform, this module delivers excellent energy yield, enhanced reliability, and a lower levelized cost of electricity (LCOE).
Featuring advanced N-Type Bycium+ cells with 16-busbar (16BB) half-cell technology, the JAM66D45 LB provides outstanding efficiency and stable power output. The bifacial double-glass design enables energy generation from both the front and rear sides of the panel, allowing additional energy gain from reflected sunlight depending on installation conditions.
With a module efficiency of up to 22.4%, this solar panel maximizes power generation per square meter while maintaining strong performance in different environmental conditions. Its low temperature coefficient of −0.29%/°C helps maintain higher output in hot climates, while improved low-irradiance performance ensures better energy production during cloudy or low-light conditions.
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The numbers that matter for sizing and wiring.
What isn't in the description above. The datasheet is the reference if the two ever differ.
| Electrical parameters at STC | |
|---|---|
| Open circuit voltage (Voc) | 47.9 V |
| Max power voltage (Vmp) | 39.6 V |
| Short circuit current (Isc) | 16.00 A |
| Max power current (Imp) | 15.28 A |
| Installation and system design | |
| Temperature coefficient (Voc) | −0.25% / °C |
| Temperature coefficient (Isc) | +0.045% / °C |
| Bifaciality | 80% ± 10% |
| Maximum system voltage | 1500 V DC |
| Operating temperature | −40°C to +85°C |
| Mechanical load | 5400 Pa front / 2400 Pa rear |
| Cells | 132 |
| Dimensions | 2382 × 1134 × 35 mm |
| Weight | 33.2 kg |
| Front / back glass | 2.0 mm / 2.0 mm |
| Junction box | IP68, 3 bypass diodes |
| Connector | QC 4.10-351 / MC4-EVO2 |
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