Solar Powered Led Lights

Solar LED Lighting Manufacturers, http://www.cn-solargardenlights.com/commercial-outdoor-lighting-manufacturers

the European Commission defined 101 standard, radiation intensity 1000W / m2, atmospheric mass AM1.5, battery temperature 25 ℃, the output power of solar cells. This condition is similar to the sunny weather conditions around the sunny day before and after noon (in the lower reaches of the Yangtze River area can only approach this value) This is not as some people imagine, as long as the sun will have the rated output power, and even that the solar cell Night fluorescent can also be used normally. That is to say, the output power of solar cells is random, at different times, different locations, the same piece of solar cell output power is different. The following are the same as the "Table 1 is the sunshine conditions in different regions of China. The following are the same as the "In order to more intuitively understand the average distribution of solar radiation around the day, Table 2 shows the relationship between the total annual radiation and the daily average peak sunshine hours (the equivalent time that the solar cells can receive 1000W / m2 irradiance per day).??Table 2 Total annual radiation and daily average peak sunshine hours corresponding table Through the above information can be seen, the design of solar lamps and lamps used in the area. The relationship between the rated output power of the solar cell module and the input power of the lamp is about 2 to 4: 1 in the east China. The specific proportion is determined according to the daily working hours of the lamp and the requirements for continuous rainy day lighting. In addition, the output power of solar cells is about 120W / m2. 2.2 battery capacity selection As the solar photovoltaic power generation system input energy is very unstable, so the general need to configure the battery system to work, solar lighting is no exception, you must configure the battery to work. Generally, there are lead-acid batteries, Ni-Cd batteries, Ni-H batteries, their capacity selection directly affects the system's availability and system prices. The choice of battery capacity generally follow the following principles: first in the night to meet the premise of lighting, the daytime solar cell components as much as possible to store the energy, but also to be able to store to meet the continuous rainy night lighting needs. Battery capacity is too small to meet the needs of night lighting, battery capacity is too large, on the one hand the battery is always in a state of loss, affecting battery life, while causing waste. 2.3 solar cell packaging form of the current solar cell packaging in the form of two, laminated and Dijiao, laminated process can ensure that the working life of solar cells for more than 25 years, Dijiao Although beautiful at the time, but the solar cell working life is only 1 ~ 2 years.