JA Solar
JAM54S31-390/MR
TIER 1
Monocrystalline
390
Pmax (W)
20.53%
Efficiency
—
Voc
25Y
Warranty
Technical Specifications
| Brand | JA Solar |
| Model | JAM54S31-390/MR |
| Max Power (Pmax) | 390W |
| Efficiency | 20.53% |
| Cell Type | Monocrystalline |
Above-Average Efficiency: At 20.53% efficiency, this module offers above-average energy conversion for its class.
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 312 JA Solar models in database
FAQ
What are the dimensions and weight of the JA Solar JAM54S31-390/MR?
Dimensions vary by configuration.
What is the max power output of the JA Solar JAM54S31-390/MR?
The JA Solar JAM54S31-390/MR is rated at 390W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the JA Solar JAM54S31-390/MR?
This panel has 20.53% efficiency, which is above average efficiency for commercial solar panels.
How long is the warranty for the JA Solar JAM54S31-390/MR?
The JAM54S31-390/MR comes with a 25-year product warranty covering defects and degradation.