A Guide To Buying Solar Street Lamps For You
Solar energy is one of the new energy sources, with a strong potential, and because of the characteristics of green energy saving and environmental protection, a variety of solar energy products have been developed, among which we have seen more estimates to be solar street lamps. Because the price of solar street lamps is relatively expensive, how to buy the right solar street lamp, does not cause a waste of money, is especially important. The following is EXC for you to select some of the most important shopping guide references.
1. LED Chip
Now many solar street lamps are made of LED beads, but the more the number of beads is the better. In fact, the higher the power is, the more bright, and then to determine whether there is strobe failure, the most direct way is to take the phone up to record screen, see whether it has been flashing. Solar lamps and lanterns products to save energy and environmental protection as the advantage, of course, the load to save energy, long life. Generally using LED lamp and 12V DC energy-saving lamp and low pressure sodium lamp.
2. Solar Panel
The main function of solar panels is to convert light energy into electricity, a phenomenon known as the photovoltaic effect. In many solar cells, the more common and more practical are mainly monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells. In the east and west regions with sufficient sunshine, it is better to use polycrystalline silicon solar cells, because the production process of polycrystalline silicon solar cells is relatively simple, its price will be much cheaper than monocrystalline silicon cells, and the conversion efficiency has been improved in recent years.
In the south, where the sunshine is relatively not very sufficient, it is better to use monocrystalline silicon solar cells, because the electrical performance parameters of monocrystalline silicon solar cells are relatively stable. Amorphous silicon solar cells are better when indoor sunlight is very weak, because amorphous silicon solar cells require lower solar illumination conditions. The most direct way is to look at the size of the solar panel. The larger the board area, the better, of course, also pay attention to the white part.
3. Storage Battery
Because the input energy of solar photovoltaic power generation system is not stable enough, it is generally necessary to configure battery system to work. Solar lamps are no exception, must be configured with a battery to work. Battery is generally divided into lead-acid battery, lithium battery and colloidal battery three kinds, different varieties of applications are also different. Now the application is more colloidal and lithium battery, lithium battery cost is higher than the other two, so in the choice to according to their own needs.
4. Light Pole
Solar street lamp poles generally should consider the height and shape of the two aspects. The higher the height of the higher the price will be, the more complex the process, the more expensive the price, of course, some special areas, such as coastal, to do a good job of anti-corrosion and wind protection of the lamp pole.
No matter the size of solar lamps, a good performance of the charge and discharge control circuit is essential. Controller quality is not good will lead to excessive discharge, excessive discharge is the result of the lighting time does not meeting the requirements, and then the battery will form greater damage. In order to prolong the service life of the battery, the charging and discharging conditions must be limited to prevent the battery from overcharging and deep discharge.
In addition, because the input energy of the solar photovoltaic power generation system is extremely unstable, the control of battery charging in the photovoltaic power generation system is more complex than the control of ordinary battery charging. For the design of solar lamps, the success or failure often depends on the success or failure of the charge and discharge control circuit. Without a good charge and discharge control circuit, solar lamps will not work well.