A: Selection solar module solar cell module is the core component of solar street light, its role is to convert the sun's radiant energy into electrical energy, the controller is transferred to and stored in batteries. In sunny areas, the use of polycrystalline silicon solar cells more appropriate, since the price of polycrystalline silicon solar cells is lower than monocrystalline silicon; higher in rainy days, the sun is relatively not very ample areas, the use of silicon solar cells is better, because the single The photoelectric conversion efficiency of the crystalline silicon solar cell to be a little higher. According to the company's many years of weather data project: the amount of sunlight and various monthly distribution, the distribution of rainy days and each month, the air quality levels, destructive weather and other conditions to choose the best solar modules. II: select the output power of the solar cell module of the solar cell module parameter is random, at different times, at different places, as a solar cell output power is different. In determining the solar cell module power, not only to be based on the average local solar radiation intensity, power and lighting fixtures also consider the daily working hours, as well, such as the required number of rainy days in a row. Our solar modules selected according to system peak power voltage of the battery plate requirements, according to the project data to the climatic conditions of the current-voltage and temperature characteristics of cells were screened and combinations. In order to achieve the best match system to determine the optimum parameters of solar modules. Three: installation of a solar cell module. Azimuth is the installation of solar cell modules toward the direction, in order to achieve maximum power output of solar cells, square vertical should be directed south. 2. Tilt angle is the angle between the horizontal plane and a solar cell matrix, and the hope that this angle is the square of the year is the best generation of maximum tilt angle. The best inclination angle of the local latitude, at higher latitudes, the corresponding angle of inclination is large. Because of the geographical broad, vast, north and south latitudes vary greatly, so as to meet the above requirements, summarized the calculated angle of the solar panel 45 degrees and 38 degrees divided into two types. Due to the high northern latitudes, winter sun small angle with the ground, using the dip angle bracket, so much choice in northern angle of 45 degrees, the southern region of 38 degrees inclination with more choices. When using multiple solar cell matrix, pay attention to the impact of the shadow, the shadow will make 10% to 20% reduction in electricity generation. When arranged in square arrays, the size of each construct were selected to be a square, and its height will be adjusted to the best condition to take advantage of the distance between the minimum height errand square. Pay particular attention to is the day of the winter solstice the longest shadow. In many areas of snow, but also consider the angle of inclination of snow fell, but not necessarily a priority snow fall, when the best angle and tilt angle snow fall contradiction, to select the total generating large year scheme. 3. In order to maintain long-term stability of components and systems for power generation performance, adapt to various climatic conditions require, the components necessary to achieve self-cleaning function, our components using nano-coating after a special treatment process to achieve a self-cleaning function. Jiangxi Hang true New Energy Technology Co., Ltd. November 18, 2011 

keywords: Solar modules, solar panels,