They require little to no maintenance, especially if you have the ones with smart control. The smart controller allows it to turn on if it’s dark outside and off during the day automatically, so you don’t need to do anything. It usually just needs a check-up once a month to see if the solar panels are working, if the LED batteries are still running, if the metal starts to rust, etc. These little things don’t require much attention, but it’s still good to check on them once in a while.