A brief introduction of solar street light

The principle, structure, advantages and disadvantages, price and purchase details of solar street lights


As an environmentally friendly and low-carbon life is getting closer, the inherent characteristics of solar lighting, such as safety and no danger, energy saving and consumption, green environmental protection, simple equipment, automatic control and protection, will directly bring significant benefits to the sale of real estate and the construction of municipal projects. available advantages. Today, the editor of Xianji.com will bring you the relevant content of solar street lights, that is, the principle, structure, advantages and disadvantages, price and purchase details of solar street lights, hoping to be useful to you.


The working principle of solar street light


Under the control of the intelligent controller during the day, the solar panel absorbs the solar light and converts it into electrical energy through the illumination of the sunlight. Complete the lighting function. The DC controller can ensure that the battery pack is not damaged due to overcharge or overdischarge, and has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.


Structural composition of solar street lights


The solar street light is composed of LED light source (including drive), solar panel, battery (including battery incubator), solar street light controller, street light pole (including foundation) and auxiliary material wires. The role of each main component:


1. Solar panels


The solar panel is the core part of the solar power generation system and the most valuable part of the solar power generation system. Its function is to convert the radiation capacity of the sun into electrical energy, or send it to the storage battery for storage, or promote the load operation. The quality and cost of solar panels will directly determine the quality and cost of the entire system.


2. Solar controller


The role of the solar controller is to control the operation of the entire system, and to protect the battery from overcharge and overdischarge. In places with large temperature difference, a qualified controller should also have the function of temperature compensation. Other additional functions such as light-controlled switches and time-controlled switches should be optional on the controller.


3. Battery




Usually lead-acid gel batteries, in small micro systems, nickel-metal hydride batteries, nickel-cadmium batteries or lithium batteries can also be used. Its function is to store the electric energy announced by the solar panel when there is light, and then release it to supply power to the street lights when needed.


The benefits of solar street lights


1. Convenient equipment


When installing solar street lights, there is no need to set up messy lines, just make a cement base and a battery pit, which can be fixed with galvanized bolts, eliminating the messy operation procedures in the construction of city circuit lights. At the same time, there is no worries about power outages.


2. Low cost

One-time investment and long-term benefits for solar street lights. Because of the concise lines, no protection costs and no valuable electricity costs are incurred. The cost will be recovered in 6-7 years, and more than 1 million electricity and protection costs will be saved in the next 3-4 years.


3. Safe and reliable

Because the solar street light adopts 12-24V low voltage, the voltage is stable, the work is reliable, and there is no safety risk. It is an ideal product for the ecological community and the road administration department.


4. Energy saving and environmental protection


The solar street light uses the natural light source sunlight, which reduces the consumption of electric energy, adds new selling points for the development and promotion of noble ecological communities, continuously reduces the cost of property management, and reduces the cost of the owner’s public share; and the solar street light is pollution-free, No radiation, it is a green lighting product advocated by the state.


5. Long life

Solar street light products have high technology content, and the service life of each battery component is more than 10 years, which is much longer than that of ordinary electric lamps. For example, the main component of solar lamps, the solar cell module, has a service life of 25 years, while the average life of low-pressure sodium lamps is 18,000 hours, and the average life of low-pressure high-efficiency three-color energy-saving lamps is 6,000 hours.


Disadvantages of solar street lights


1. Low power and high cost

The development level of solar energy application, some aspects are theoretically feasible and technically sophisticated. However, some solar energy application equipment has low power and high cost. In general, the economy cannot compete with conventional power.


2. Dispersion

Although the total amount of solar radiation reaching the Earth’s surface is large, the energy flux density is very low. Therefore, when using solar energy, if you want to obtain a certain conversion power, a set of collection and conversion equipment with a large area is often required, and the cost is relatively high.


3. Instability

The solar irradiance reaching a certain ground is both intermittent and extremely unstable. In order to make solar energy a continuous and stable power, and finally become an alternative power that can compete with conventional power, it is necessary to solve the problem of storage. However, energy storage is also one of the weakest links in the application of solar energy.


solar street light price


The price of solar street lights is related to its equipment. The price of solar street lights is mainly concentrated in four parts: light poles, battery panels, led light sources, and batteries.


1. Look at the specific height of the solar street light pole that the customer wants. For example, the light pole is 4 meters, 8 meters or 12 meters, which is the choice for this demand. Different lamp pole heights are calculated according to the share, and different lamp pole prices are obtained.

2. Look at the price of the solar kit series. For example, the daily work solar kit is mainly divided into solar street light panels, solar street light batteries, solar street light controllers and solar battery boxes.

3. The price of double-arm solar street lights is also different from that of single-arm solar street lights. Double-arm street lights require 2 solar panels, so the cost will be higher. Others, such as cables and foundation pre-buried cages, are not very different. For specific prices, please refer to the table below:


Purchase details of solar street lights


1. LED light source


Most of the solar street lights on the market are LED light sources, and most of the lamp beads use 1W high power, so in general, the power of a lamp bead is 1W, so we can choose according to the specific Use the environment to choose the appropriate lamp beads, so as to give full play to the role of lighting.


2. Battery board


Solar street light panels generally have two types: single crystal and polycrystalline. Now the price of single crystal on the market is often higher than that of polycrystalline. Many unscrupulous manufacturers will reduce the 50w to 40w for assembly, which is very ugly for a layman, even if there is no professional instrument measurement for people in the industry, it is difficult to find the problem.

Therefore, it is suggested that we can measure according to the scale area. The scale area of ​​the battery panel is monthly, so the power of the battery panel will be larger, and vice versa, the smaller it will be, so we can choose the right battery panel according to this rule.


3. Battery

The battery is an important part of the structure of solar street lights. Generally, there are three types of lead-acid batteries, lithium batteries and gel batteries, which can only be classified. Different varieties have different functions. At present, colloidal and lithium batteries are more commonly used, and the cost of lithium batteries is higher than the other two, so we can make a reasonable choice according to our own needs and economic ability when choosing.


4. Light pole

Solar street light poles generally need to consider two aspects: height and shape. The higher the height, the higher the price. If the shape of the light pole is messy, the price will also increase relatively, so we should try our best to consider it when purchasing. , choose the appropriate height and shape according to different places and needs.


4. Controller

The poor quality of the controller will lead to over-discharge. The result of over-discharge is that the lighting time cannot meet the requirements, which will cause greater damage to the battery.


The above content is the principle, structural composition, advantages and disadvantages, price and purchase details of solar street lights shared by the ALLTOP lighting today. I believe you also have an understanding of solar street lights. Nowadays, energy saving and environmental protection are being promoted nationwide, and solar street lights are very popular with people because of their excellent energy saving effect and low-carbon lighting without pollution. Solar street lights will also become the mainstream trend of future lighting.


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Post time: Jul-14-2022