I bought a C425 kit with a solar panel because I didn't want to pull a power supply to the camera. The C520 can also be swivelled, which I really like for a 2nd location. When will this model come with the solar panel as a kit? or can you buy the panel separately and power the C520 that way. i want to avoid the 240VAC supply. There were confusing answers in the forum that didn't address the question (from another user) .....