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Brand range: 335W–485W
Monocrystalline
SunPower SPR-A390
Max Power
390W
Efficiency
20.86%
Operating V
39V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 48V |
| Short Circuit Current (Isc) | 10.8A |
| Voltage at Pmax (Vmp) | 39V |
| Current at Pmax (Imp) | 10A |
| Temp. Coefficient of Pmax | -0.311%/°C |
| Dimensions | 1757 x 1065 x 35 mm |
| Weight | 23.4kg |
| NOCT | 46.4°C |
| PTC Rating | 370.4W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 110 SunPower models in database
FAQ
How long is the warranty for the SunPower SPR-A390?
The SPR-A390 comes with a 25-year product warranty covering defects and degradation.
How efficient is the SunPower SPR-A390?
This panel has 20.86% efficiency, which is above average for commercial solar panels.
What is the max power output of the SunPower SPR-A390?
The SunPower SPR-A390 is rated at 390W under STC (1000 W/m², 25°C, AM 1.5).
What are the dimensions and weight of the SunPower SPR-A390?
It measures 1757 x 1065 x 35 mm and weighs 23.4kg.
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📊 Brand Context
SunPower offers 110 solar panel models from 335W to 485W.
Browse all SunPower models →