Suntech Power
STP280S-20/Wem
TIER 2
Monocrystalline
280
Pmax (W)
17.21%
Efficiency
—
Voc
25Y
Warranty
Technical Specifications
| Brand | Suntech Power |
| Model | STP280S-20/Wem |
| Max Power (Pmax) | 280W |
| Efficiency | 17.21% |
| Cell Type | Monocrystalline |
Below-Average Efficiency: At 17.21% efficiency, this module prioritises affordability. Efficiency can be offset by lower cost per watt.
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 133 Suntech Power models in database
FAQ
What are the dimensions and weight of the Suntech Power STP280S-20/Wem?
Dimensions vary by configuration.
What is the max power output of the Suntech Power STP280S-20/Wem?
The Suntech Power STP280S-20/Wem is rated at 280W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Suntech Power STP280S-20/Wem?
This panel has 17.21% efficiency, which is below-average efficiency for commercial solar panels.
How long is the warranty for the Suntech Power STP280S-20/Wem?
The STP280S-20/Wem comes with a 25-year product warranty covering defects and degradation.