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Brand range: 240W–640W
Monocrystalline
Silfab SIL-440QD
Max Power
440W
Efficiency
23.28%
Operating V
33.4V
Warranty
25Y
Technical Specifications
| Open Circuit Voltage (Voc) | 39.0V |
| Short Circuit Current (Isc) | 14.25A |
| Voltage at Pmax (Vmp) | 33.4V |
| Current at Pmax (Imp) | 13.17A |
| Temp. Coefficient of Pmax | -0.294%/°C |
| Dimensions | 1766 x 1070 x 35 mm |
| Weight | 23.6kg |
| NOCT | 45.85°C |
| PTC Rating | 419.7W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 283 Silfab models in database
FAQ
How long is the warranty for the Silfab SIL-440QD?
The SIL-440QD comes with a 25-year product warranty covering defects and degradation.
How does temperature affect the Silfab SIL-440QD?
With a temp coefficient of -0.294%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
What is the max power output of the Silfab SIL-440QD?
The Silfab SIL-440QD is rated at 440W under STC (1000 W/m², 25°C, AM 1.5).
What are the dimensions and weight of the Silfab SIL-440QD?
It measures 1766 x 1070 x 35 mm and weighs 23.6kg.
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☀️ Top Performer
This Silfab model ranks among the brand's most efficient panels at 23.28%.
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