1. Solar panels: Solar panels are the core part of the solar power generation system and the most valuable part of the solar power generation system. Its function is to convert the sun's radiation into electrical energy, or send it to the battery for storage, or drive the load to work.

2. Solar controller: The function of the solar controller is to control the working state of the entire system and protect the battery from overcharge and over-discharge. In places with large temperature differences, qualified controllers should also have temperature compensation functions. Other additional functions such as light-controlled switches and time-controlled switches should be optional for the controller;