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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Every number, by component.
The figures the manufacturer publishes. The datasheet above is the reference if the two ever differ.
Technical Specifications
| Electrical Parameters (STC) | |
|---|---|
| Rated Maximum Power (Pmax) | 605 W |
| Open Circuit Voltage (Voc) | 47.9 V |
| Maximum Power Voltage (Vmp) | 39.6 V |
| Short Circuit Current (Isc) | 16.00 A |
| Maximum Power Current (Imp) | 15.28 A |
| Module Efficiency | 22.4% |
| Temperature Characteristics | |
| Temperature Coefficient (Pmax) | -0.29% / °C |
| Temperature Coefficient (Voc) | -0.25% / °C |
| Temperature Coefficient (Isc) | +0.045% / °C |
| Mechanical Parameters | |
| Cell Type | N-Type Mono |
| Number of Cells | 132 Cells |
| Dimensions | 2382 × 1134 × 35 mm |
| Weight | 33.2 kg |
| Front / Back Glass | 2.0 mm / 2.0 mm Double Glass |
| Junction Box | IP68, 3 Bypass Diodes |
| Connector | QC 4.10-351 / MC4-EVO2 |
| Operating Conditions | |
| Maximum System Voltage | 1500 V DC |
| Operating Temperature | -40°C to +85°C |
| Maximum Front Load | 5400 Pa |
| Maximum Rear Load | 2400 Pa |
| Bifaciality | 80% ±10% |
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