The popularity of solar street lights is now more widespread, so do you all know how to choose solar street lights? Please follow the editor of the solar insecticidal lamp manufacturer to find out.
①System rated voltage
That is, the rated voltage of the battery. The voltage of a single solar cell is generally 0.4~0.7V. The common solar cell modules are 36/54/60/72/96 in series, and the voltage is 18/27/30/36/ 48 volts or so.
②The amount of local solar radiation
This can be directly inquired on the Internet, and the monthly average radiation amount of the best angle is selected, and the minimum three-month average value is required. When installing, you must also pay attention to the installation angle and direction to ensure that the solar street light can receive sufficient sunlight. , to ensure the charging efficiency, according to the specific environment, it is a good position to be in the range of ±20° due south.
③Compensation for rainy days
This is determined according to the local climatic conditions. The charging efficiency of the solar battery cover is naturally not as good as that of the sunny day in cloudy and rainy days, so it is necessary to ensure that the battery can store enough power so that the solar street lights can be used normally in cloudy and rainy days. This will also relate to the working efficiency of the panels.
④Consecutive rainy days interval
That is, the number of sunny days between two consecutive cloudy and rainy days. It should be noted here that when calculating the relevant parameters, the average sunshine is generally used as the basis for supplementary charging in sunny days. The actual amount of radiation in sunny days is greater than the average sunshine.
Moreover, it is not completely empty to charge the battery in cloudy and rainy days, so when calculating this parameter, it is not necessary to really select the interval of continuous cloudy and rainy days, and the value can be appropriately enlarged. A ratio of 1:3 or 1:4 is suitable.
⑤ Solar panel output power
A solar panel is generally composed of multiple solar cells connected in series. Its capacity depends on the total power consumed by the lighting source, line transmission components, and local solar radiation energy.
Under normal circumstances, the output power of solar panels should be more than 3 to 5 times the power of the light source, 3 to 4 times more in areas with abundant light and short lighting hours, and the lighting conditions are not good. ~5 times more.
⑥LED lamp head power
That is, the power of the lamp head or the driving efficiency of the controller, which is determined according to the specific installation environment. The higher the lamp pole, the better the lighting effect, and the higher the power requirements of the lamp head.