The role of each part in the solar LED street light power generation system

　　 Everyone knows that solar panels are the power generation system in solar LED street lights, which are composed of solar cell components, solar controllers, and batteries (groups).　　1. Battery: Generally, there are two types of lead-acid batteries, 12V and 24V, and nickel-metal hydride batteries, nickel-cadmium batteries or lithium batteries may be used in small and micro power generation systems. Its function is to store the electric energy converted by the solar panel when there is light, and then release it when it is needed; 　　2, solar controller: the function of the solar controller is to control the working state of the entire solar LED street light lighting system , And play the role of overcharge protection and overdischarge protection for the battery. At the same time, in places with large temperature differences, high-quality controllers should also have temperature compensation functions. Other additional functions such as light control switches and time control switches should be controllers.　　3. Inverter: AC220V, AC110V AC power supply is needed in many occasions. Because the direct output of solar energy is generally DC6V, DC12V, DC24V, DC48V, in order to provide corresponding electrical energy to AC220V electrical appliances, it is necessary To convert the DC power generated by the solar power system into AC power, a DC-AC inverter is needed. In some occasions, when a load of multiple voltages is required, a DC-AC inverter can also be used, such as Convert 24VDC electric energy into 5VDC electric energy; 　　4. Solar panel: Solar panel is the core component of solar power generation system, and it is also the most expensive part of solar power generation system. Its function is to convert solar energy into electric energy and send it to the storage battery for storage, which is used to drive the load to work. The quality and cost of solar panels will directly determine the quality and cost of the entire solar LED street lighting system.