Solar lights require regular maintenance to last a long time and stay functional, but cleaning solar lights is simple and easy. Solar lights have no wires or cords to make them more complicated, so the maintenance includes only a few things. Since solar lights are pretty much self-sufficient, they are easier to maintain as compared to other devices, like electric lamps.
Outdoor solar lights come with IP65 waterproofing and are built with durable materials. They are easy to clean with a damp washcloth without causing any damage. Also, some people also use warm water or dish soap for a more thorough cleaning. You can clean the solar panels using this technique as well. One thing to be careful about is the pressure you apply because you don’t want to damage your lights.