Solar streetlight procurement, these factors can not be ignored
When purchasing solar street lamps, many purchasing units pay attention to the width of the road and the height of the solar street lights. However, there is no basic concept or neglect of the sunshine hours in the region. This is not correct.
In general, the width of the road and the environment in which it is used determine the power of the solar street light, mainly the power of the light source. For example, rural roads are generally more than 5 meters wide, and 6 meters of 30W solar street lights are used. After the general manufacturers have determined the height and power, they will carry out simple solar panel and battery configuration, but the relationship between the source power and the solar panel power and battery capacity is not clear.
The local sun sunshine hours mentioned here refer to the average number of hours of sunshine per year in an area. This data is generally available in Baidu. For example, in the Baidu Encyclopedia, enter "Jiangmen", in its climate characteristics, it shows that the annual sunshine is 1700 hours. The average daily equivalent is 1700/365 days = 4.7 hours. Of course, this sunshine time actually needs to be a little discount when calculating the solar panel power, because the solar panel can not fully absorb these energy, generally calculated as 4.7 * 0.8 = 3.8 hours is relatively safe.
In addition, we must consider the number of rainy days. This general large area also has data. For example, the longest rainy day in Guangdong is 18 days. The Guizhou and Sichuan provinces are relatively more likely to be higher. I have to improve accordingly.
Therefore, the relevant accessories and technical parameters of solar street lamps are closely related to the local sunshine time and the longest rainy day. When purchasing solar street lights, it is best to find well-known solar street lamp manufacturers, so that you can get better solutions and better products. At present, Yuzhiyuan can basically achieve the nationwide guarantee of lighting throughout the year, which is trustworthy!