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Brand range: 255W–450W
Monocrystalline
Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw
Max Power
390W
Efficiency
20.0%
Operating V
39.7V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 48.8V |
| Short Circuit Current (Isc) | 10.18A |
| Voltage at Pmax (Vmp) | 39.7V |
| Current at Pmax (Imp) | 9.83A |
| Temp. Coefficient of Pmax | -0.355%/°C |
| Dimensions | 1794 x 1087 x 35 mm |
| Weight | 24.4kg |
| NOCT | 46.1°C |
| PTC Rating | 368.0W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 128 Wuxi Suntech Power Co., Ltd models in database
FAQ
How efficient is the Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw?
This panel has 20.0% efficiency, which is above average for commercial solar panels.
How long is the warranty for the Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw?
The STP390S-A24U/Vfw comes with a 25-year product warranty covering defects and degradation.
What are the dimensions and weight of the Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw?
It measures 1794 x 1087 x 35 mm and weighs 24.4kg.
What is the max power output of the Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw?
The Wuxi Suntech Power Co., Ltd STP390S-A24U/Vfw is rated at 390W under STC (1000 W/m², 25°C, AM 1.5).
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📊 Brand Context
Wuxi Suntech Power Co., Ltd offers 128 solar panel models from 255W to 450W.
Browse all Wuxi Suntech Power Co., Ltd models →