The price of 300 watts of solar street lamps ranges from 300 yuan to 2000 yuan. Why is the price gap so large? First, whether there is a need for lamp poles and the difference in the length of lamp poles; Second, there is a gap in parameter configuration. Many of them have false bid parameters, which leads to price confusion. In fact, the common engineering road lighting can not use such a large wattage. Generally, the lamp cap power is between 60 watts and 100 watts, and the photovoltaic panel power is basically in this range. Of course, the storage capacity of the battery also needs to be proportional to the electric energy released by the photovoltaic panel energy conversion and lamp cap power.
The wattage brightness of solar street lamps cannot be compared with that of commercial power. There are many false signs in the market. Most of the time, 300 watts is just a gimmick, because if a solar street lamp needs to use 300 watts of functional brightness consumption, then the corresponding photovoltaic panel wattage and battery capacity need to be very large, and the cost completely exceeds the budget. The original use of solar street lamps is not only easy to install, It is also for the purpose of saving energy expenditure in the later stage, sharing the cost equally, and saving more than using municipal lighting. If the initial cost is too high, there is no saving.
Why is the initial cost too high? In terms of cost performance, it is not as good as the municipal circuit lighting. Because the solar street lamp has been tested, and its service life is basically 5-10 years, reaching a certain number of years, there will be replacement, maintenance and replacement, such as the controller and lithium battery. If the municipal circuit lighting is used, the annual electricity expenditure of a lamp is 300 yuan, and the five-year service is 1500 yuan, but a solar street lamp may need 2000 yuan or more, That's completely unnecessary. Basically, the solar street lighting we see does not use 300 watts, which is a common sense concept.
To understand the price of a solar street lamp, first we need to know the height of the lamp pole, the size of the photovoltaic panel, the battery capacity, the power of the lamp cap and the material of these accessories, such as whether it needs a 6-meter lamp pole or a 5-meter lamp pole, whether it is a polysilicon photovoltaic panel or a monocrystalline silicon photovoltaic panel, whether it is a lithium iron phosphate battery or a colloidal battery, and so on. If we only judge the price of a solar street lamp by a single Watt, it is easy to be cheated, For example, some websites have hundreds of watts or thousands of watts on the Internet. There is no specific parameter configuration, and the price varies from tens of yuan. Don't buy this.