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Brand range: 270W–630W
Monocrystalline
Sonali SS156H-620ND
Max Power
620W
Efficiency
22.14%
Operating V
45.8V
Warranty
30Y
Technical Specifications
| Open Circuit Voltage (Voc) | 55.3V |
| Short Circuit Current (Isc) | 14.3A |
| Voltage at Pmax (Vmp) | 45.8V |
| Current at Pmax (Imp) | 13.54A |
| Temp. Coefficient of Pmax | -0.299%/°C |
| Dimensions | 2149 x 1303 x 35 mm |
| Weight | 35.0kg |
| NOCT | 43.5°C |
| PTC Rating | 594.4W |
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 276 Sonali models in database
FAQ
What warranty does Sonali provide?
Sonali offers a 30-year warranty for the SS156H-620ND, reflecting confidence in long-term durability.
How efficient is the Sonali SS156H-620ND?
This panel has 22.14% efficiency, which is high for commercial solar panels.
What is the max power output of the Sonali SS156H-620ND?
The Sonali SS156H-620ND is rated at 620W under STC (1000 W/m², 25°C, AM 1.5).
How does temperature affect the Sonali SS156H-620ND?
With a temp coefficient of -0.299%/°C, it outperforms the industry average of -0.35 to -0.40%/°C.
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☀️ Top Performer
This Sonali model ranks among the brand's most efficient panels at 22.14%.
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