Indeed, the bitrate of your solar-powered wireless home security cameras will have a significant impact on the size of the video file. The greater the bitrate, the crisper the photos and videos, and the larger the file size. You may use this page to figure out the findings of a more precise storage estimate of solar-powered security cameras using SD cards. When the SD card in your WiFi solar powered security cameras is full, the older footage is overwritten by the new ones. So you don't have to manually erase the film from your wireless solar powered security camera with a motion sensor - just remember to routinely back up the crucial files.