solar camera

Hi all, I have a building that I'd like to monitor (abroad if it makes a difference). Sunny hot climate but cold in winter. I will buy a local sim card for the 4G access, and it needs to be solar powered. I don't need many features but PTZ would be useful (I can compromise to fixed if great...

Just wondering if anyone else has had an absolute mare with one of these Hikvision solar bullets. We bought this one in a few years ago and never really used it - mainly because the covid panic died down and the client that had a sudden need for lots of remote cameras went back to work, but...