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Brand range: 240W–640W
Monocrystalline
Silfab SIL-400QD
Max Power
400W
Efficiency
21.16%
Operating V
32.7V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 38.7V |
| Short Circuit Current (Isc) | 12.78A |
| Voltage at Pmax (Vmp) | 32.7V |
| Current at Pmax (Imp) | 12.22A |
| Temp. Coefficient of Pmax | -0.294%/°C |
| Dimensions | 1766 x 1070 x 35 mm |
| Weight | 23.6kg |
| NOCT | 45.85°C |
| PTC Rating | 381.6W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 283 Silfab models in database
FAQ
How efficient is the Silfab SIL-400QD?
This panel has 21.16% efficiency, which is high for commercial solar panels.
How does temperature affect the Silfab SIL-400QD?
With a temp coefficient of -0.294%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
How long is the warranty for the Silfab SIL-400QD?
The SIL-400QD comes with a 25-year product warranty covering defects and degradation.
What is the max power output of the Silfab SIL-400QD?
The Silfab SIL-400QD is rated at 400W under STC (1000 W/m², 25°C, AM 1.5).
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