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Brand range: 390W–690W
Monocrystalline
Sunpal Power Co. Ltd. SP645M-66H
Max Power
645W
Efficiency
20.74%
Operating V
37.2V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 45.1V |
| Short Circuit Current (Isc) | 18.38A |
| Voltage at Pmax (Vmp) | 37.2V |
| Current at Pmax (Imp) | 17.34A |
| Temp. Coefficient of Pmax | -0.351%/°C |
| Dimensions | 2265 x 1373 x 35 mm |
| Weight | 38.9kg |
| NOCT | 45.57°C |
| PTC Rating | 610.0W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 40 Sunpal Power Co. Ltd. models in database
FAQ
What are the dimensions and weight of the Sunpal Power Co. Ltd. SP645M-66H?
It measures 2265 x 1373 x 35 mm and weighs 38.9kg.
What is the max power output of the Sunpal Power Co. Ltd. SP645M-66H?
The Sunpal Power Co. Ltd. SP645M-66H is rated at 645W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Sunpal Power Co. Ltd. SP645M-66H?
This panel has 20.74% efficiency, which is above average for commercial solar panels.
What warranty does Sunpal Power Co. Ltd. provide?
Sunpal Power Co. Ltd. offers a 30-year warranty for the SP645M-66H, reflecting confidence in long-term durability.
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At 645W, this is one of Sunpal Power Co. Ltd.'s most powerful panels.
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