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Brand range: 310W–550W
Monocrystalline
SolarJuice American Inc. S4A-US390
Max Power
390W
Efficiency
19.8%
Operating V
40.6V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 49.3V |
| Short Circuit Current (Isc) | 10.17A |
| Voltage at Pmax (Vmp) | 40.6V |
| Current at Pmax (Imp) | 9.62A |
| Temp. Coefficient of Pmax | -0.33%/°C |
| Dimensions | 1803 x 1093 x 35 mm |
| Weight | 24.6kg |
| NOCT | 46.2°C |
| PTC Rating | 369.5W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 40 SolarJuice American Inc. models in database
FAQ
How efficient is the SolarJuice American Inc. S4A-US390?
This panel has 19.8% efficiency, which is above average for commercial solar panels.
What are the dimensions and weight of the SolarJuice American Inc. S4A-US390?
It measures 1803 x 1093 x 35 mm and weighs 24.6kg.
What is the max power output of the SolarJuice American Inc. S4A-US390?
The SolarJuice American Inc. S4A-US390 is rated at 390W under STC (1000 W/m², 25°C, AM 1.5).
How long is the warranty for the SolarJuice American Inc. S4A-US390?
The S4A-US390 comes with a 25-year product warranty covering defects and degradation.
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📊 Brand Context
SolarJuice American Inc. offers 40 solar panel models from 310W to 550W.
Browse all SolarJuice American Inc. models →