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| Module Type | NK520-144-M182-FL | NK525-144-M182-FL | NK530-144-M182-FL | NK535-144-M182-FL |
| Testing Condition | STC | STC | STC | STC |
| Rated output (Pmp/Wp) | 520 | 525 | 530 | 535 |
| Maximum Power Voltage(Vmpp/V) | 41.03 | 41.21 | 41.39 | 41.57 |
| Maximum Power Current(Impp/A) | 12.67 | 12.75 | 12.81 | 12.87 |
| Open Circuit Voltage(Voc/V) | 48.94 | 49.09 | 49.24 | 49.39 |
| Short Circuit Current(Isc/A) | 13.64 | 13.70 | 13.76 | 13.83 |
| Module efficiency(%) | 19.54% | 19.73% | 19.91% | 20.10% |
| Power Tolerance (W) | 0~+5 | 0~+5 | 0~+5 | 0~+5 |