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Brand range: 300W–590W
Monocrystalline
FreeVolt ECP-PVGRAF-120HC-350W Black
Max Power
350W
Efficiency
19.13%
Operating V
33.6V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 40.1V |
| Short Circuit Current (Isc) | 11.15A |
| Voltage at Pmax (Vmp) | 33.6V |
| Current at Pmax (Imp) | 10.42A |
| Temp. Coefficient of Pmax | -0.359%/°C |
| Dimensions | 1738 x 1053 x 35 mm |
| Weight | 22.9kg |
| NOCT | 44.2°C |
| PTC Rating | 332.0W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 58 FreeVolt models in database
FAQ
How efficient is the FreeVolt ECP-PVGRAF-120HC-350W Black?
This panel has 19.13% efficiency, which is above average for commercial solar panels.
What are the dimensions and weight of the FreeVolt ECP-PVGRAF-120HC-350W Black?
It measures 1738 x 1053 x 35 mm and weighs 22.9kg.
What is the max power output of the FreeVolt ECP-PVGRAF-120HC-350W Black?
The FreeVolt ECP-PVGRAF-120HC-350W Black is rated at 350W under STC (1000 W/m², 25°C, AM 1.5).
How long is the warranty for the FreeVolt ECP-PVGRAF-120HC-350W Black?
The ECP-PVGRAF-120HC-350W Black comes with a 25-year product warranty covering defects and degradation.
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📊 Brand Context
FreeVolt offers 58 solar panel models from 300W to 590W.
Browse all FreeVolt models →