AliExpress is offering an outdoor surveillance camera running on solar energy. Wireless, this camera is therefore simpler to install, since you just need to place it within the radius of your WiFi network.
The solar panel takes care of charging the battery during the day, to allow the camera to operate night and day. The camera works thanks to the iCsee mobile application: the latter allows you to control the video stream or communicate with the camera, via your smartphone. It is 39.69 instead of 100.42 euros on AliExpress.