@sniknejchng 

1. A solar panel's efficiency is influenced by direct sunlight. The panel can still collect and convert light energy in the absence of direct sunlight, however, in low-light conditions, the output power will be affected, and it may not be able to provide sufficient power.

For cameras, which require more power than lighting devices, it's recommended to install the solar panel in a location with direct sunlight.

2. As a battery camera, Tapo C425 does not support RTSP, which typically involves continuous streaming and consumes considerable power. Not even with a solar panel.