The output power of solar cells depends on solar radiation, solar light distribution and the working temperature of solar cells. In terms of area, the output power of solar cells per square meter is about 120W. With the improvement of conversion efficiency, the output power increases accordingly. The selection of output power of solar cell module shall be determined according to the light source power of solar lamp, service time and local climate and geographical conditions.
Therefore, during the use of solar street lamps, if a single solar cell is blocked by leaves for a long time, the blocked single solar cell will be heated and damaged under strong sunlight, and even the whole solar cell module will be damaged, so that Taiyang street lamps can not be used normally. In order to prevent such a situation, Generally, the solar cell is placed obliquely so that the surface of the solar cell cannot be attached with a shelter.
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