English 
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Portuguese With the development and progress of solar photovoltaic technology, it was first applied to lighting fixtures in civil applications. In recent years, due to the dual advantages of environmental protection and energy saving, solar garden lights, solar lawn lights and solar street lights have gradually been applied Form a scale.
In the design of solar lighting lamps, many factors are involved, such as light source, solar battery system, battery charging and discharging control, and any problem in any link will cause product defects.
Solar lamps are composed of the following five parts
1. Solar panels
2. Charge and discharge controller
3. Battery
4. Load
5. Lamp shell
