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Brand range: 310W–550W
Monocrystalline
Sinotec USA LLC STS-390M3-72
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)
🏷️ 26 Sinotec USA LLC models in database
FAQ
How efficient is the Sinotec USA LLC STS-390M3-72?
This panel has 19.8% efficiency, which is above average for commercial solar panels.
How long is the warranty for the Sinotec USA LLC STS-390M3-72?
The STS-390M3-72 comes with a 25-year product warranty covering defects and degradation.
What are the dimensions and weight of the Sinotec USA LLC STS-390M3-72?
It measures 1803 x 1093 x 35 mm and weighs 24.6kg.
What is the max power output of the Sinotec USA LLC STS-390M3-72?
The Sinotec USA LLC STS-390M3-72 is rated at 390W under STC (1000 W/m², 25°C, AM 1.5).
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📊 Brand Context
Sinotec USA LLC offers 26 solar panel models from 310W to 550W.
Browse all Sinotec USA LLC models →