The working principle of solar street light : Under the control of intelligent controller during the daytime, the solar panel is illuminated by sunlight, absorbs solar light and converts it into electric energy. During the day, the solar panel charges the battery pack, and at night, the battery supply power to the LED. The light source is powered to achieve the lighting function. The DC controller ensures that the battery pack is not damaged by overcharging or overdischarging, and has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.

Installation comparison
When installing solar street lights, there is no need to set up complex lines, only a cement base and a battery pit, which can be fixed by galvanized bolts.

There are complicated operating procedures in the construction of circuit lights in the city. First of all, it is necessary to provide a large number of civil constructions such as cables, trenching pipes, pipe threading, backfilling, etc., which consumes a lot of human resource, material resources and financial resources. Finally, debugging is required, and if there is a problem, it is very expensive.

Cost comparison
Solar street lights are invested once but benefited for a long time. Because the lines are simple, no maintenance costs are incurred and no expensive electricity costs are incurred. The cost will be recovered in 6-7 years, and the electricity and maintenance costs will be saved by more than 1 million in the next 3-4 years.

The city’s circuit lights have high electricity costs and complicated lines, and it is necessary to maintain the lines for a long time without interruption. In the case of particularly unstable voltage, the sodium lamp is prone to be inevitable, and as the age increases, the line aging and maintenance costs increase year by year.

Safety comparison
Due to the low voltage of 12-24V, the solar street lamp has stable voltage, reliable operation and no hidden dangers. It is an ideal product for the ecological community and the road administration department.

The safety of mains electricity has big hidden danger. People’s living environment is changing constantly. Road reconstruction, landscape engineering construction, power supply is not normal, and cross-construction of water gas pipelines brings many hidden dangers.
Environmental comparison

Solar street lights can add new selling points for the development and promotion of noble ecological communities; sustainable reduction of property management costs and reduction of the cost of the public share of the owners. In summary, the inherent characteristics of solar lighting safety without hidden dangers, energy saving and no consumption, green environmental protection, easy installation, automatic control and maintenance-free will directly bring obvious advantages for the sale of real estate and the construction of municipal engineering.

Lifetime comparison
The lifetime of solar lamps is much longer than that of ordinary electric lamps. For example, the main components of solar lamps—the lifetime of solar panel is 25 years; the average life of low-pressure sodium lamps is 18,000 hours; the average of low-voltage and high-efficiency trichromatic energy-saving lamps The life expectancy is 6000 hours; the average life of super bright LED is more than 50,000 hours; the life of inside battery is 2-5 years below 38AH; 3-7 years of 38-150AH. According to the regulations of the local community according to the local price bureau “one-time residential street lamp maintenance fee of 6 RMB/m2 according to the pure residential building area”, the initial investment of ordinary lamps is much higher than the initial investment of solar lamps.

 In short, according to the comprehensive comparison, solar street lights can save investment, it is quite obvious.

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