1. First, look at the solar panel intuitively. The larger the size of the solar panel, the greater the power, and the higher the charging efficiency. However, there is a single crystal solar panel that has a higher charging efficiency than the polycrystalline solar panel. The size of the same power will be smaller than the polycrystalline solar panel. Professionals can also see the label on the back of the solar panel, which generally indicates the power.
2. Look at the connecting wire between the solar panel and the lamp body. The thicker the connecting wire, the smaller the voltage drop, but the higher the corresponding cost.
3. Depending on the battery and capacity, solar garden lamps generally use more lithium iron phosphate batteries, which have a longer life and are safer. In addition, the larger the capacity of the battery, the more power will be stored, and the lighting time will be correspondingly longer. However, it is difficult to see the battery installed inside the lamp body. This can only be judged by weight. The bigger the battery capacity, the heavier the lamp.
