The eufyCam 3 (S330) can also function without direct sunlight as it has a battery that can last up to 365 days when fully charged. The integrated solar panel helps to charge the battery, but it is not essential that the camera receives direct sunlight in order to function. If the camera is mounted under a roof, it can still be charged manually via a USB-C port. Alternatively, an external solar panel can be used if the integrated solar panel is not sufficient.

Functions of the eufyCam 3:
- Solar operation: Integrated solar panel for battery charging.
- Battery: Up to 365 days of operation when fully charged.
- Manual charging: Possible via USB-C connection.
- External solar panel: Optional for additional power supply.
- Night vision: Coloured night vision with spotlight support.

Overall, the eufyCam 3 can be used flexibly and can also be operated without direct sunlight as long as the battery is charged regularly.