Wuxi Suntech Power Co., Ltd
STP320S-A21/Wfhb
TIER 2
Monocrystalline
320
Pmax (W)
18.5%
Efficiency
—
Voc
25Y
Warranty
Technical Specifications
| Brand | Wuxi Suntech Power Co., Ltd |
| Model | STP320S-A21/Wfhb |
| Max Power (Pmax) | 320W |
| Efficiency | 18.5% |
| Cell Type | Monocrystalline |
Standard Efficiency: At 18.5% efficiency, this offers a solid balance between cost per watt and energy output.
📋 Data verified: June 2026
📄 Specs based on STC (1000 W/m², 25°C, AM 1.5)
🏷️ 128 Wuxi Suntech Power Co., Ltd models in database
FAQ
What are the dimensions and weight of the Wuxi Suntech Power Co., Ltd STP320S-A21/Wfhb?
Dimensions vary by configuration.
What is the max power output of the Wuxi Suntech Power Co., Ltd STP320S-A21/Wfhb?
The Wuxi Suntech Power Co., Ltd STP320S-A21/Wfhb is rated at 320W under STC (1000 W/m², 25°C, AM 1.5).
How efficient is the Wuxi Suntech Power Co., Ltd STP320S-A21/Wfhb?
This panel has 18.5% efficiency, which is standard efficiency for commercial solar panels.
How long is the warranty for the Wuxi Suntech Power Co., Ltd STP320S-A21/Wfhb?
The STP320S-A21/Wfhb comes with a 25-year product warranty covering defects and degradation.