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Brand range: 535W–695W
Monocrystalline
SUNPLUS OPTIMUM LIMITED SR5-66HBD-645M
Max Power
645W
Efficiency
21.29%
Operating V
37.5V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 45.3V |
| Short Circuit Current (Isc) | 18.27A |
| Voltage at Pmax (Vmp) | 37.5V |
| Current at Pmax (Imp) | 17.21A |
| Temp. Coefficient of Pmax | -0.386%/°C |
| Dimensions | 2236 x 1355 x 35 mm |
| Weight | 37.9kg |
| NOCT | 44.8°C |
| PTC Rating | 608.1W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 23 SUNPLUS OPTIMUM LIMITED models in database
FAQ
What are the dimensions and weight of the SUNPLUS OPTIMUM LIMITED SR5-66HBD-645M?
It measures 2236 x 1355 x 35 mm and weighs 37.9kg.
What is the max power output of the SUNPLUS OPTIMUM LIMITED SR5-66HBD-645M?
The SUNPLUS OPTIMUM LIMITED SR5-66HBD-645M is rated at 645W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the SUNPLUS OPTIMUM LIMITED SR5-66HBD-645M?
This panel has 21.29% efficiency, which is high for commercial solar panels.
What warranty does SUNPLUS OPTIMUM LIMITED provide?
SUNPLUS OPTIMUM LIMITED offers a 30-year warranty for the SR5-66HBD-645M, reflecting confidence in long-term durability.
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At 645W, this is one of SUNPLUS OPTIMUM LIMITED's most powerful panels.
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