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Brand range: 275W–740W
Monocrystalline
REC REC640AA Pro M
Max Power
640W
Efficiency
23.1%
Operating V
37.1V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 44.9V |
| Short Circuit Current (Isc) | 17.89A |
| Voltage at Pmax (Vmp) | 37.1V |
| Current at Pmax (Imp) | 17.26A |
| Temp. Coefficient of Pmax | -0.239%/°C |
| Dimensions | 2138 x 1296 x 35 mm |
| Weight | 34.6kg |
| NOCT | 45.97°C |
| PTC Rating | 615.9W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 242 REC models in database
FAQ
How efficient is the REC REC640AA Pro M?
This panel has 23.1% efficiency, which is high for commercial solar panels.
How does temperature affect the REC REC640AA Pro M?
With a temp coefficient of -0.239%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
What warranty does REC provide?
REC offers a 30-year warranty for the REC640AA Pro M, reflecting confidence in long-term durability.
What is the max power output of the REC REC640AA Pro M?
The REC REC640AA Pro M is rated at 640W under STC (1000 W/m², 25°C, AM 1.5).
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☀️ Top Performer
This REC model ranks among the brand's most efficient panels at 23.1%.
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