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Brand range: 335W–485W
Monocrystalline
SunPower SPR-M445
Max Power
445W
Efficiency
23.8%
Operating V
40.7V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 48.2V |
| Short Circuit Current (Isc) | 11.6A |
| Voltage at Pmax (Vmp) | 40.7V |
| Current at Pmax (Imp) | 10.93A |
| Temp. Coefficient of Pmax | -0.276%/°C |
| Dimensions | 1757 x 1065 x 35 mm |
| Weight | 23.4kg |
| NOCT | 47.16°C |
| PTC Rating | 424.5W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 110 SunPower models in database
FAQ
How long is the warranty for the SunPower SPR-M445?
The SPR-M445 comes with a 25-year product warranty covering defects and degradation.
How efficient is the SunPower SPR-M445?
This panel has 23.8% efficiency, which is high for commercial solar panels.
What is the max power output of the SunPower SPR-M445?
The SunPower SPR-M445 is rated at 445W under STC (1000 W/m², 25°C, AM 1.5).
How does temperature affect the SunPower SPR-M445?
With a temp coefficient of -0.276%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
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☀️ Top Performer
This SunPower model ranks among the brand's most efficient panels at 23.8%.
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