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Brand range: 335W–485W
Monocrystalline
SunPower SPR-MAX3-400-R
Max Power
400W
Efficiency
21.05%
Operating V
33.9V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 40.5V |
| Short Circuit Current (Isc) | 13.06A |
| Voltage at Pmax (Vmp) | 33.9V |
| Current at Pmax (Imp) | 11.81A |
| Temp. Coefficient of Pmax | -0.28%/°C |
| Dimensions | 1771 x 1073 x 35 mm |
| Weight | 23.8kg |
| NOCT | 46.01°C |
| PTC Rating | 382.3W |
📋 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-MAX3-400-R?
The SPR-MAX3-400-R comes with a 25-year product warranty covering defects and degradation.
How does temperature affect the SunPower SPR-MAX3-400-R?
With a temp coefficient of -0.28%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
How efficient is the SunPower SPR-MAX3-400-R?
This panel has 21.05% efficiency, which is high for commercial solar panels.
What is the max power output of the SunPower SPR-MAX3-400-R?
The SunPower SPR-MAX3-400-R is rated at 400W under STC (1000 W/m², 25°C, AM 1.5).
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📊 Brand Context
SunPower offers 110 solar panel models from 335W to 485W.
Browse all SunPower models →