A solar panel rated at 400V is likely referring to its maximum voltage output under optimal conditions. Most solar panels operate at a lower voltage, typically between 30V to 50V, but in a string configuration, multiple panels can reach higher voltages.
If you're looking into solar panels for a specific application, like a grid-tied system or off-grid setup, it's important to consider factors like:
1. **System Voltage**: Ensure compatibility with your inverter and battery system.
2. **Wattage**: A 400W panel can be effective for various residential or commercial applications.
3. **Efficiency**: Look for panels with high efficiency to maximize power output per square meter.
4. **Installation Requirements**: Check the mounting and wiring needs based on the panel's specifications.
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