Shenzhen UNIKE Technology Limited Company News

   Solar street lamps have been widely used in the field of road lighting due to their advantages such as energy conservation, environmental protection and convenient installation. However, as it is usually installed in open and tall outdoor environments, it is highly likely to become a target of lightning strikes. Once lightning strikes a solar street lamp, it will not only damage key components such as the lamp, controller and battery, but also may cause safety accidents and result in economic losses. Therefore, it is of vital importance to master effective measures against lightning strikes. ​ A perfect grounding system    Good grounding is the foundation of lightning protection for solar street lamps. The grounding system can quickly introduce the powerful instantaneous current generated by lightning into the ground, preventing equipment from being damaged due to overvoltage. First of all, appropriate grounding materials should be selected. Generally, hot-dip galvanized flat steel, round steel or copper materials are used, which have good electrical conductivity and corrosion resistance. The burial depth of the grounding electrode should comply with relevant standards, usually not less than 0.6 meters, and it is necessary to ensure that the grounding electrode is in full contact with the soil. The resistivity of the soil can be reduced and the grounding effect enhanced by adding resistance-reducing agents around the grounding electrode. The general requirement is that the grounding resistance should not exceed 4Ω. If this standard cannot be met, the grounding resistance can be reduced by increasing the number of grounding electrodes or extending the length of the grounding body. ​ Install lightning rods or lightning belts    A lightning rod or lightning belt can attract lightning to itself and safely discharge the lightning current through the grounding system. When installing lightning rods on the top of solar street lamps, it is necessary to ensure that the height and protection range of the lightning rods can cover the entire street lamp system. The length of a lightning rod is generally determined by the height of the street lamp and the surrounding environment, usually ranging from 0.5 to 1 meter. For some solar street lamp facilities that are tall and large in area, it is more appropriate to install lightning protection belts. Lightning protection belts should be laid along metal components such as street lamp poles and solar panel brackets, and be reliably connected to the grounding system. ​   The application of surge protectors (SPDS)    Surge protectors are key equipment for lightning protection in solar street lamps. They can instantly limit excessively high voltages within the range that the equipment can withstand. In the solar street lamp system, surge protectors need to be installed at multiple locations. At the DC output end of the solar panel, a DC SPD should be installed to prevent overvoltage generated by lightning induction from invading the system along the power line. On the connection lines between the controller and the battery, corresponding SPDS also need to be installed to protect these core components. When choosing a surge protector, a reasonable selection should be made based on parameters such as the system's working voltage, maximum continuous operating voltage, and nominal discharge current. ​ Line protection    The circuit of a solar street lamp includes the DC circuit between the solar panel and the controller, the circuit between the controller and the lamp, etc. These lines also require special attention during the lightning protection process. Shielded cables should be used as much as possible for the lines, and both ends of the shielding layer should be reliably grounded to prevent lightning electromagnetic pulses from interfering with the lines and inducing overvoltage. In cases where shielded cables cannot be used, a metal pipe can be wrapped around the cable and grounded. Meanwhile, the laying of the lines should avoid crossing with other metal objects as much as possible to reduce the generation of induced overvoltage. ​ The reasonable layout and installation of the equipment    When installing solar street lamps, the positions of each component should be reasonably arranged. Solar panels should be installed at the top of the lamp post as much as possible to avoid being blocked by tall buildings or trees around. At the same time, it is necessary to ensure a good electrical connection between the solar panels and the lamp post. The controller and battery should be installed in a place that is waterproof, moisture-proof and easy to maintain, and kept away from damp and high-temperature environments. During the installation process, all metal components must be reliably electrically connected to form a complete equipotential body, avoiding safety accidents caused by electric sparks resulting from potential differences. ​ Regular maintenance and inspection    Lightning protection facilities are not a one-time solution and require regular maintenance and inspection. Regularly check whether the grounding system is in good condition and whether there is any corrosion or loosening of the grounding electrode. Check whether the surge protector is working properly and whether its indication status is normal. Check whether there are any problems such as damage or aging in the circuit. For the problems found, timely repair and replacement should be carried out to ensure that the lightning protection system of solar street lamps is always in good working condition. ​    The lightning protection of solar street lamps is a systematic project, which requires comprehensive consideration and implementation from multiple aspects such as grounding systems, lightning protection devices, surge protection, line protection, equipment installation and regular maintenance. Only by doing every link well can the lightning protection capacity of solar street lamps be effectively enhanced and their safe and stable operation be guaranteed.

   In the industrial and mining sectors, lighting conditions are crucial and have a direct bearing on productivity and personnel safety. As the main lighting equipment in this field, the high bay lamp has a rich classification to adapt to a variety of complex and diverse environments and needs. The detailed classification of high bay lamps is as follows:       Classification by light source type 1. High-pressure sodium lamp mining lamp    High pressure sodium lamp is a common gas discharge lamp. The light emitted by it is golden yellow and has the characteristics of high luminous efficiency and strong permeability to fog. It is widely used in some places where the color rendering requirement is not high, but high brightness large-area lighting is required, such as large open-pit mines and outdoor storage yards of steel mills. High-pressure sodium lamps can provide sufficient light in harsh outdoor environments, even in the case of fog or dust, it can ensure a certain degree of visibility to ensure the smooth progress of the operation. 2. Metal halide lamp mining lamp    The light color of the metal halide lamp is close to natural light, and the color rendering is better, which can make the object show the true color. This makes it popular in some industrial places where color discrimination is required, such as electronic manufacturing workshops, where workers need to accurately identify the color, model and other details of electronic products. Metal halide lamps can provide high brightness and high color reproduction lighting to help workers complete production tasks more accurately. However, the starting time of the metal halide lamp is relatively long, which may not be suitable for some occasions that need to be lit quickly. 3. LED high bay light    As a new type of light source, LED has been rapidly developed in the field of industrial and mining lamps in recent years. LED high bay light have many advantages such as energy saving, long life, fast response, strong shock resistance and so on. Its energy-saving effect is significant, compared with the traditional light source can greatly reduce energy consumption, saving operating costs for enterprises. In addition, the LED lights can be lit instantaneously, without warm-up time. Its life can reach tens of thousands of hours, reducing the trouble and cost of frequent replacement of lamps. In addition, through the special optical design, LED high bay light can achieve a variety of light distribution methods to meet the lighting needs of different places, whether it is a narrow roadway or a spacious industrial plant can be applied. Classification by protection level 1. IP30 protection grade high bay light    IP30 protection grade high bay lamps are suitable for general indoor industrial environment, and have a certain protection ability against dust and water. Among them, "3" means that objects with a diameter greater than 2.5 mm can be protected from entering the interior of the lamp, and "0" means that there is no waterproof protection. This protection level of high bay lamps can be used in some relatively dry, less dust workshops, such as textile workshops, mechanical assembly workshops, etc., to provide stable lighting for normal production operations. 2. IP65 protection grade high bay lamp      The IP65 protection class is one of the more commonly used. "6" means completely prevent foreign object intrusion, and can completely prevent dust from entering; "5" indicates that flushing with water does not cause any harm. This protection level of mining lamps can adapt to more harsh environments, such as underground mines, chemical workshops and so on. In the underground mine, the wet and dusty environment of the lamp protection requirements are extremely high, IP65 protection grade high bay lamps can effectively protect the internal components, ensure that the lamp works normally in a complex environment, for the safe operation of miners to provide reliable lighting protection. 3. IP67 protection grade high bay lamp    IP67 protection grade high bay lamp protection performance to a higher level. "7" means that the lamp can still ensure normal operation under certain conditions of time or water pressure in quite deep water. This high protection level of high bay lamps are often used in some extremely harsh environments, such as offshore oil drilling platforms, lighting equipment on the platform not only to face high humidity, high salt air, but also may be directly impacted by seawater, IP67 protection level of high bay lamps can well meet these challenges to ensure the stable operation of the lighting system.   Classified by light distribution mode 1. Narrow distribution light high bay lamp    The light of narrow distribution mining lamps is concentrated in a small angular range, and is usually used for occasions where remote lighting is required or a specific area is highlighted. For example, in the shaft of the mine, it is necessary to project the light to the deeper underground, and the narrow distribution light high bay lamp can play its advantage, and the light can be accurately illuminated to the target position, providing clear lighting for the underground operators. 2. Wide distribution light high bay lamp    Wide distribution light high bay lamp light distribution is more extensive, can illuminate a large area. In large industrial plants, it is necessary to illuminate the entire workshop evenly, and wide distribution light high bay lamps become the ideal choice. It can make the whole workshop in a bright and uniform light environment, avoid lighting dead corners, and help improve the efficiency and safety of workers. 3. Medium distribution light high bay lamp    The light distribution Angle of the medium light high bay lamp is between narrow light distribution and wide light distribution, which is suitable for some places with specific requirements for lighting range and intensity. For example, in some medium-sized warehouses, it is necessary to illuminate a certain area, but also to ensure that the goods on the shelf have enough brightness for identification, and the light high bay lamp can meet such needs.      Different types of high bay lamps have their own characteristics in terms of light source, protection, light distribution, etc. Enterprises can choose the most suitable high bay lamps according to their actual needs, such as working environment, lighting requirements, budget and other factors, to create good lighting conditions for industrial production and mining operations, and help safe production and efficient operation.

   Photocell sensor Street lamp is mainly composed of Photocell sensor, controller and street lamp and other parts. Its working principle is to use the photocell sensor to sense the intensity of the environmental light changes, the light signal into electrical signals, the controller according to the electrical signal to control the light and brightness of the street lamp, as follows:      1. Light perception: photocell sensors are the "eyes" of street lamps, usually using components such as photoresistors, photodiodes or phototriodes. These components are very sensitive to light, and when the ambient light hits the photocell sensor, the electronic structure inside will change, resulting in a corresponding change in the resistance value or current value. For example, a photoresistor has a lower resistance when the light is good and a higher resistance when the light is low; Photodiodes and phototriodes generate different amounts of current depending on the intensity of the light.    2. Signal conversion and processing: After the photocell sensor converts the perceived optical signal into an electrical signal, the signal is transmitted to the controller. The controller is usually a microprocessor or single chip computer, which has specific programs and algorithms built in to analyze and process the incoming electrical signals. The controller compares the received electrical signal with a preset threshold to determine whether the intensity of the current ambient light meets the conditions for the street light to be turned on or off.      3. Street lamp control: According to the processing results of the controller, when the ambient light intensity is lower than the preset opening threshold, the controller will issue instructions to open the street lamp through the drive circuit, and control the brightness of the street lamp as needed. If the ambient light intensity is higher than the preset shutdown threshold, the controller will issue a shutdown command to turn off the street lamp. In some photocell sensor street lights with dimming function, the controller will also accurately control the luminance of street lamps by adjusting the output current or voltage of the drive circuit according to the specific intensity of the ambient light and other relevant factors (such as traffic flow, time, etc.) to achieve intelligent dimming function.        Photocell sensor street light with its intelligent, energy-saving and other characteristics, is widely used in urban roads, highways, industrial parks and other scenes, in energy saving, intelligent control and other aspects of excellence, with the following advantages:    1. Efficient and energy saving    On-demand lighting: photocell sensors can sense the ambient light intensity in real time. When the ambient light is sufficient, such as during the day, the street lamp automatically turns off, avoiding unnecessary power consumption. When the light is dark, such as at night or on cloudy days, the street lamp automatically turns on and works normally. This precise intelligent control greatly reduces the ineffective lighting time of street lights, thus significantly reducing energy consumption, compared with the working mode of traditional street lights that are always open. ​ Intelligent dimming: Some advanced photocell sensor street lights also have dimming functions. According to the actual brightness of the surrounding environment and traffic flow and other factors, the street lamp can automatically adjust the luminous brightness. In the late night, when the traffic flow and the flow of people are small, the appropriate reduction of the brightness of the street lamp can not only ensure the basic lighting needs, but also further save energy. According to relevant studies, photocell sensor street lights with dimming function can save 30%-60% of energy than ordinary street lights. ​    2. Extend service life    Reduce frequent switching impact: the timing control method of traditional street lamps may force the street lamp to open or close at an inappropriate time, and frequent switching operation will cause a large current impact on key components such as the lamp bulb and ballast, accelerate the aging of components, and shorten the overall service life of the street lamp. The photocell sensor street lamp automatically controls the switch according to the ambient light, avoids unnecessary frequent switching, reduces the current impact, makes the working state of the street lamp components more stable, and effectively extends the service life of the street lamp. ​    Optimizing the working state: Because the photocell sensor street light can adjust the brightness according to the actual needs, and reduce the power operation without full brightness, the street light is in a relatively easy working state most of the time, reducing the wear and tear of the components, further extending the service life of the street light, and reducing the maintenance and replacement costs of the street light. ​    3. Improve lighting quality    Real-time adaptation to the environment: photocell sensors can quickly and accurately perceive changes in environmental light, whether it is sudden clouds blocking the sun, or the sky gradually darkening at night, street lights can respond in time, quickly adjust the lighting state, and provide continuous and stable lighting for the road. This ability to adapt to the environment in real time effectively avoids visual discomfort caused by light mutations, providing a safer and more comfortable lighting environment for pedestrians and vehicles. ​ Eliminate lighting dead corners: By rationally arranging the position of photocell sensors and street lights, precise control of lighting needs in different areas of the road can be achieved. For some corners, intersections and other places prone to lighting dead corners,photocell sensor street lights can increase the lighting brightness according to the actual situation, ensure the lighting effect of these key areas, improve the overall lighting quality of the road, and reduce the risk of traffic accidents. ​    4. Easy installation and maintenance    Easy installation: The installation process of photocell sensor street light is relatively simple. The sensor is usually small in size, easy to install in the appropriate position of the street lamp pole, and easy to connect with the street lamp control system. Compared with some complex intelligent lighting systems, there is no need to lay a large number of additional control lines, which reduces the construction difficulty and cost during the installation process, shortens the installation time, and improves the installation efficiency. ​    Efficient maintenance: Because the failure rate of the photocell sensor street lamp is relatively low, and its intelligent control system can monitor the working status of the street lamp in real time, once the fault occurs, it can quickly locate the problem, and the maintenance personnel can carry out targeted maintenance, which greatly reduces the maintenance time and improves the efficiency of the maintenance work. At the same time, the long service life also reduces the maintenance workload of frequent replacement of street lamp components. ​    5. Environmental protection and sustainability    Reduce carbon emissions: The energy-saving nature of the photocell sensor street light means that the greenhouse gas emissions generated during the power generation process are correspondingly reduced. Taking a medium-sized city as an example, if a certain number of traditional street lights are replaced with photocell sensor street lights, a large number of greenhouse gas emissions such as carbon dioxide can be reduced every year, which has positive significance for mitigating global climate change and is in line with the environmental protection concept of sustainable development. ​ Resource conservation: Reducing the replacement frequency and maintenance needs of street lamps means that in the process of production and transportation of street lamps and their components, the consumption of raw materials, water resources and energy is also correspondingly reduced, which helps to achieve efficient use and conservation of resources, and promotes the development of urban lighting systems in a more environmentally friendly and sustainable direction.

   In the dynamic landscape of international trade, the outdoor lighting sector, particularly street lamps and floodlights, is experiencing remarkable growth and innovation. This industry is not only illuminating the world but also driving economic development across borders.​ Market Expansion and Growth Projections​     The global outdoor lighting market has been on an upward trajectory in recent years. It grew from 13.46 billionin 2023 to 14.56 billion in 2024, with a compound annual growth rate (CAGR) of 8.2%, according to research from ResearchAndMarkets.com. This growth is expected to continue, reaching $19.16 billion by 2028 at a CAGR of 7.9%. The market expansion is attributed to several factors, including the increasing adoption of energy - efficient lighting systems, the penetration of LED technology, and the growing demand for safety and security in outdoor spaces.​     Energy - Efficiency and Sustainability: A Key Selling Point​    Energy - efficient lighting solutions are at the forefront of the outdoor lighting export market. For instance, many companies are replacing traditional street lights with energy - efficient LED lights. In September 2021, the New York State government replaced 286,000 street lights with LED lights and aims to extend this to half a million street lights by 2025. Moreover, the Inflation Reduction Acts of 2022 in the United States provide tax deductions for those opting for energy - efficient lighting, further promoting the use of such systems.​    Solar - powered outdoor lighting is also gaining significant traction. The International Energy Agency reported that solar photovoltaic (PV) generation reached almost 1,300 terawatt - hours in 2022, and projections indicate that solar PV's installed power capacity will surpass coal by 2027, becoming the world's largest power capacity source. Many exporters are capitalizing on this trend by offering solar - powered street lamps and floodlights, which are not only energy - efficient but also eco - friendly, appealing to markets worldwide.​ Product Innovation: Meeting Diverse Global Needs​    Innovative product development is another crucial aspect of the outdoor lighting export industry. LED street light, for example, are evolving to meet various requirements. In June 2022, Evluma introduced the Roadmax series, offering versatility with three sizes accommodating different wattages. This luminaire, designed to meet RP - 8 - 18 roadway specifications, stands out for its sleek aesthetic and exceptional optical design, providing excellent roadway performance and glare control.​      Floodlights, known for their ability to provide high - intensity illumination over a large area, are also being innovated. They are used in a wide range of applications, from illuminating stadiums for sports events to highlighting the architecture of buildings. Modern floodlights come with features such as adjustable beam angles, long - lasting LED bulbs, and robust weather - resistant casings, making them suitable for diverse environmental conditions across different countries.​     Future Outlook​    As the global demand for outdoor lighting continues to grow, exporters are expected to focus more on innovation, energy - efficiency, and sustainability. The integration of smart lighting technologies, such as the use of sensors for automatic brightness adjustment and remote control capabilities, is also likely to become more prevalent in exported street lamps and floodlights. With the continuous expansion of infrastructure development and urbanization in emerging economies, the outdoor lighting export market is set to shine even brighter in the coming years.

1. Definition of LED light source and luminaire An LED light source is a component that is provided with an LED lamp or LED module. LED luminaires are luminaires that are designed to use LED light sources. A luminaire is defined as "an apparatus capable of distributing, transmitting or transforming the light emitted by one or more lamps, and includes all the parts necessary to support, secure and protect the lamp (but not the lamp itself) as well as the necessary electrical aids and devices to connect them to the power source."   2. The reason why LEDs are misunderstood as LED light sources The light sources in conventional luminaires are almost always replaceable. With the advent of LEDs,Most of the lamps using LED modules appear in a non-replaceable form, which seems to show a trend of integration.The boundaries between LED light sources and LED luminaires also seem to be blurred.Is the whole a luminaire and can be considered as a light source? In fact, it is clearly written in the definition of luminaires: a luminaire with a monolithic non-replaceable light source is considered a luminaire. Luminaires using LED modules are precisely one example of luminaires.     3. The light source has the characteristics of being used by different lamps The light source is used by the luminaire. LED light sources can be used both in simple lamps and in road lamps. 4. Differences in the level of protection of the enclosure As a light source, there are no special enclosure protection requirements or IP20 should be achieved. However, the enclosure rating of outdoor lighting fixtures should be at least IP65.The enclosure protection level of LED road lamps should reach at least IPX3, and the enclosure protection level of tunnel lamps should reach at least IPX5.   5. Different luminous fluxes The luminous flux of the light source in the luminous effect of the LED light source refers to the luminous flux emitted by the bare light source (the state in which the luminaire is not yet installed).Among them, the LED light source can be an integrated LED lamp or an integrated LED module,Semi-integrated LED lamps or semi-integrated LED modules or non-integrated LED lamps or non-integrated LED modules.The numerator-one luminous flux in the expression of the efficiency of LED luminaires refers to the light source being installed into the luminaire.   The luminous flux emitted by the luminaire after using the required LED control device or the power supply of the LED control unit at the same time.The power supply of the LED control device or the LED control device can be integral,Built-in or free-standing. Luminaires that use LED light sources may use reflectors, diffusers, or lenses. The light source installed in the luminaire may be a single light source or a collection of multiple light sources, but the efficiency loss due to the interaction of thermal energy and electrical energy, and the efficiency of the luminaire optical system, the luminous flux of the LED luminaire is not equal to the luminous flux of the LED light source or its simple accumulation. The luminous flux in the luminous efficiency of the LED light source is different from the luminous flux in the luminaire efficiency in the luminaire performance. The former is measured in the pulsed state and the latter in the steady-state operating state. The light in the LED light source is non-directional, as long as the light can be emitted, it is recognized in all directions. The light in the efficiency of LED lamps is directional, and the light needs to be sent to useful areas.

   A photovoltaic panel is a type of solar energy conversion device that converts solar energy into electricity. Solar panels are one of the most commonly used, and the common solar panels of solar street lights are mainly divided into two categories: monocrystalline photovoltaic panels and polycrystalline photovoltaic panels.    Monocrystalline photovoltaic panels are made from a single silicon crystal. In the manufacturing process, the silicon material is first melted and then cooled down to become a solid. The silicon mass thus formed is called a "ingot". Next, this ingot will be cut into very thin wafers, which are called "wafers". The wafers are assembled on photovoltaic panels to form a complete monocrystalline photovoltaic panel. Monocrystalline PV panels have a dark blue appearance and are usually square or rectangular in shape.    In contrast, polycrystalline photovoltaic panels are made up of multiple small crystals. The manufacturing process for polycrystalline photovoltaic panels is similar to that of monocrystalline photovoltaic panels, but instead of melting into a single crystal, the silicon material forms multiple small crystals during the melting process. These small crystals are cut into wafers and then assembled on photovoltaic panels. Polycrystalline PV panels have a light blue or gray appearance and are usually square or rectangular in shape.    In addition to the differences in manufacturing process and appearance, monocrystalline PV panels and polycrystalline PV panels have different performance characteristics. Monocrystalline PV panels are more efficient than polycrystalline PV panels because they are made of a single crystal, making it easier for electrons to move within the crystal. In addition, monocrystalline PV panels perform better in low light conditions because of its faster response time. The cost of polycrystalline PV panels is lower than that of monocrystalline PV panels because polycrystalline silicon is cheaper than monocrystalline silicon. In addition, polycrystalline photovoltaic panels perform better at high temperatures and low light conditions because it has a lower surface reflectivity and is better able to absorb light energy.    When choosing solar panels, you should choose monocrystalline PV panels or polycrystalline PV panels according to the specific application scenario. If high efficiency and stable performance are required, then choosing monocrystalline PV panels is a good choice. If you need to reduce costs and adapt to high temperature and low light conditions, then hydrocrystalline photovoltaic panels are a better choice.    In conclusion, both monocrystalline and polycrystalline PV panels have their advantages and disadvantages, which should be chosen according to the application scenario and budget. With the continuous development and advancement of solar technology, we believe that the performance and cost of both photovoltaic panels will be continuously improved and improved.

   Explosion-proof lamps are those lamps like metal halide lamps or high-pressure sodium, because this type of lamps and lanterns are high-pressure and high-temperature nature, there is a certain danger, and this kind of lamps and lanterns will be much safer to make explosion-proof.        But LED luminaires are different, they are cold light sources and there is no danger of breaking or exploding. So why should LED lamps be made explosion-proof? What is the difference between it and ordinary LED lights?      Explosion-proof lamps are mainly used in hazardous places where flammable gases and dusts are present to prevent combustion or explosion caused by arcing, sparks and high temperatures generated inside the luminaire. Avoid the activation of flammable gases and dusts in the surrounding environment due to the combustion or explosion of the lamp, so as to meet the explosion-proof requirements of the lamp. Explosion-proof lamps are also called explosion-proof lamps, explosion-proof lighting street lights, LED explosion-proof lights, and so on. Different flammable substances and gas mixtures have different requirements for the type and grade of explosion-proof lamps.        LED explosion-proof lamps and ordinary lamps can be intuitively seen from the surface, and most of the explosion-proof lamps are yellow in color (not excluding a few other colors). In terms of weight, the explosion-proof lamp is much heavier than the ordinary lamp, because the heat dissipation aluminum used in the explosion-proof lamp is thickened, in order to prevent the internal constant current source from being damaged to the protective shell after the problem. The explosion-proof types of conventional explosion-proof lamps are as follows.   1.Increased safety type e    Under normal operating conditions, the electrical equipment that will not produce arc and spark takes some additional measures to improve its safety, prevents its internal and external parts from having the possibility of dangerous temperature, arc and spark explosion-proof type, and further takes protective measures in the structure to improve the reliability performance and safety performance of the equipment. 2.Positive pressure type p    Electrical equipment protects static positive pressure inside the system or maintains a continuous flow of air or inert gases to limit the entry of flammable mixtures into the enclosure by keeping the pressure of the shielding gas inside the enclosure higher than the ambient explosion-proof atmosphere pressure to safety. Remove the flammable gases that enter the housing when the equipment is not under positive pressure to prevent the formation of flammable mixtures in the housing. 3.Pouring type m    The electrical parts that may produce the spark, arc or dangerous temperature part that ignites the explosion of explosive mixture, are poured in the encapsulant (compound), so that it can not ignite the surrounding explosive mixture, adopt the pouring measures, can prevent the short circuit of electrical components, solidify the electrical insulation, avoid the spark on the circuit and the ignition of arc and dangerous temperature, prevent the invasion of explosive mixture, and control the surface temperature under normal and fault conditions. 4.Oil-filled o    The whole equipment or parts of the equipment are invaded in the oil I protective fluid l, so that it can not be ignited above the fuel level or outside the explosion-proof gas environment outside the shell. 5.Sand filling type Q    The protective type of electrical equipment in which the shell is filled with sand particles or other powder materials with specified characteristics, so that under the specified conditions of use, the arc or high temperature generated in the shell cannot ignite the surrounding explosive gas atmosphere.   Due to the different requirements for explosion-proof lamps in different environments, it is important not to choose explosion-proof lamps casually, but to choose the corresponding model according to specific requirements.

1. Choose LED lighting fixtures with lumens/watt height   Luminous flux, which is the total amount of visible light emitted by a light source per unit of time, in lumens (Lm). Luminous efficiency, i.e., the amount of light energy emitted per watt of electrical power produced by a light source (commonly known as luminous flux), unit: lumens per watt (Lm/w)   The comprehensive luminous effect of LED lighting fixtures refers to the luminous efficiency of a finished LED street lamp. Under the rated voltage, the total luminous flux emitted by the LED lamp is divided by the total power consumption of the LED lamp, that is, the comprehensive luminous efficiency of the LED lamp, expressed in lumens/watt, the higher the value, the better the energy-saving effect of the lamp, the more power saving. Under the same power, the lamps with high luminous efficiency and large luminous flux are brighter and more energy-saving! A 3W LED bulb is taller than an 18W energy-saving lamp. And the ratio is about 8 times that of a 40W incandescent lamp. 2. Choose products with high color rendering index   Color rendering refers to the degree to which the color of an object is close to the true color when illuminated by light. The higher the Ra value of the color rendering index, the closer the color of the object will be to the true color. It is generally believed that 80~100, excellent color rendering; 50~79, general color rendering:

  On the side of the busy highway, the gas station provides 24-hour energy supply for vehicles. And among them, led canopy light play a crucial role.   1. the special mission of the gas station lamp   Different from ordinary outdoor lighting, petrol station lamps shoulder a more stringent mission:   Safety first: Gas stations are flammable and explosive places, and gas station lights must have explosion-proof and fireproof performance to eliminate any potential safety hazards.   Durable: Petrol station lamps need to withstand wind, sun, rain and snow erosion, so they must have the characteristics of waterproof, dustproof and corrosion resistance to ensure long-term stable operation.   High efficiency and energy saving: Gas stations are open 24 hours a day, and gas station lights need to have the characteristics of high light efficiency and low energy consumption to reduce operating costs and practice the concept of green environmental protection.   Intelligent control: Modern petrol station lights are often equipped with an intelligent control system that automatically adjusts the brightness according to the ambient light, enabling on-demand lighting and further energy savings.   2.the types and applications of gas station lights   According to the installation location and functional requirements, the gas station lights are mainly divided into the following categories:     Canopy lights: Installed on the roof of a petrol station to provide overall illumination of the refueling area, often with high-power LED luminaires, to ensure a clear view of the night operation.   Bollard Light: Installed next to the dispenser or at the entrance of the petrol station, it provides accent lighting for local areas to facilitate vehicle entry and exit and refueling operations.   Emergency Lights: In the event of a sudden power outage, emergency lighting is provided for the petrol station to ensure the safety of personnel and property.   3. Precautions for choosing gas station lights   To choose the right petrol station light, the following factors need to be taken into account:   Safety certification: Ensure that the lamps and lanterns have passed the explosion-proof and fire-proof certification of the national authority and meet the safety specifications of gas stations.   Protection Grade: Choose lamps with IP65 protection level and above to cope with various adverse weather conditions.   Light source type: LED lamps have the advantages of high light efficiency, long life, low energy consumption, etc., which is an ideal choice for gas station lights.   Brand service: Choose a reputable brand, pay attention to its after-sales service guarantee, and ensure the long-term stable operation of the lamp.   4. the future development trend of gas station lights   With the advancement of science and technology, the petrol station lamp is also constantly upgrading:   Intelligent: The gas station lights will be more intelligent, which can realize remote control, fault diagnosis, data analysis and other functions, providing more convenience for gas station operations.   Personalization: The gas station light will pay more attention to the appearance design, which will be integrated with the overall style of the gas station and enhance the brand image.   Energy saving and environmental protection: The petrol station lamp will adopt more energy-saving and environmentally friendly materials and technologies to contribute to green and sustainable development.     In short, the gas station lamp seems ordinary, but it shoulders the important task of ensuring safety and improving efficiency. Choosing the right gas station light can not only bring light to the gas station, but also escort the safe operation.

   The battery is a very critical component of the solar street light system, and it is also a major part of the cost of the solar street light system. Solar street light batteries are divided into lead-acid batteries, gel batteries, ternary lithium batteries, and lithium iron phosphate batteries, and the characteristics of these batteries are as follows:   Battery classification Battery features Lead-acid batteries Low cost, large capacity, high charging and discharging efficiency, but low specific energy, large volume, short service life (about 300-500 deep cycles), and frequent daily maintenance Gel batteries In fact, it is an upgraded version of lead-acid battery, which uses colloidal electrolyte instead of sulfuric acid electrolyte, which improves safety, power storage, discharge performance and service life, and the price may be higher than that of ternary lithium battery Ternary lithium battery The specific energy is high, the size is small, and the charging is fast, but the price is higher, the number of deep cycles is about 500-800 times, and the temperature range is -15°C-45°C Lithium iron phosphate battery High specific energy, small size, fast charging, long service life (up to 8-10 years), good stability, highest price, deep cycle charging times of about 1500-2000 times, wide range of operating temperature (-40°C~70°C)    What are the advantages of lithium battery solar street light system?    Lithium battery is a kind of battery made of lithium metal or lithium alloy as the anode material, using non-aqueous electrolyte solution, compared with other solar street light batteries, lithium batteries are more environmentally friendly, light weight, longer life, and of course, the price of lithium batteries will be slightly higher.      Lithium batteries are used in solar street lighting systems and have the following advantages:    1. The charging and discharging system of lithium battery generally adopts the integrated structure of lithium battery and controller, which is a controllable and pollution-free energy storage battery system.    2. According to the needs of users, lithium battery solar street lamps can also intelligently optimize the calculation of the remaining capacity of lithium batteries, day and night duration, weather conditions and other elements, reasonably allocate power levels, and complete the functions of light control, time control and storage memories, which can ensure the intelligent setting of the solar street light system;      3. Lithium batteries are classified as dry batteries, which are more stable and safer than gel batteries.    4. The weight of lithium battery is light, and the weight of the same capacity specification is about 1/6-1/5 of that of lead-acid battery;    5. Lithium battery has stronger environmental adaptability, can be used in the environment of -20 °C - -60 °C, after technical treatment, it can even be used in the environment of -45 °C, which also provides conditions for the promotion of solar street lights in cold areas.

    Solar street light is an environmentally friendly and energy-saving lighting device that uses solar energy to generate electricity, store electrical energy, and illuminate at night. It uses solar panels to absorb daylight, convert it into electricity, and store it in batteries, thus realizing the function of night lighting. Its endurance mainly depends on the photoelectric conversion efficiency of the solar panel, the energy storage capacity of the battery and the stability of the charging system.      1.The photoelectric conversion efficiency of solar panels is one of the key factors affecting the endurance of solar street lights.The higher the photoelectric conversion efficiency, the more efficiently the solar panels can absorb daylight and convert it into electricity, thus providing more sufficient power support for night lighting.At present, the photoelectric conversion efficiency of solar panels on the market has been quite high,which can reach more than 20%, which ensures that the solar street lights can be fully charged during the day and provide continuous lighting for the night.      2.The energy storage capacity of the battery is also one of the important factors affecting the endurance of solar street lights.   It is responsible for storing the electrical energy converted by solar panels during the day and providing it to LED lights at night or when there is low light. The larger the energy storage capacity of the battery, the more electricity can be stored, thus extending the use time of solar street lights. The types of solar street lamps of different models and brands are also different, and the common ones are lead-acid batteries, lithium-ion batteries and lithium cobalt oxide batteries. The power and performance of these batteries also vary, affecting the lifespan and lighting effect of solar street lights.   The battery of the solar street light can be replaced, but it needs to be determined on a case-by-case basis. First and foremost, the life of the battery is a factor to consider. With the increase of use time, the capacity of solar street light batteries will gradually decrease, affecting the lighting effect of the lamp. When the battery capacity drops to a certain extent, it is necessary to consider replacing the battery to ensure the normal operation of the street light. Secondly, the maintenance of the battery needs to be considered. Solar street light batteries need to be checked and maintained regularly, including cleaning the dust and dirt on the surface of the battery, checking the connection and charging and discharging performance of the battery, etc. If the battery is severely aged, damaged, or degraded, it is time to consider replacing the battery to ensure proper operation. Finally, pay attention to the model and specifications of the battery. Different brands and models of solar street lights may use different batteries, so you need to choose the right battery model and specifications when replacing the battery to ensure compatibility and proper operation.    3.The stability of the charging system will also have an impact on the battery life of the solar street lights.    The stable charging system can ensure that the solar cells can fully absorb the sunlight and store the electrical energy into the battery in time, so as to ensure that the solar street lights can work normally. When designing solar street lights, it is necessary to consider the intelligent control functions of the charging system, such as light control,time control, temperature control, etc., to improve the charging efficiency and extend the service life of the battery.     In summary, the endurance of solar street lights is affected by several factors, including the photoelectric conversion efficiency of solar panels, the energy storage capacity of batteries, and the stability of charging systems. Through scientific and reasonable design and material selection, solar street lights can achieve long-term continuous illumination, providing safe, energy-saving and environmentally friendly lighting services for our city at night.

   As an important part of urban lighting, AC LED street lights have many advantages. The following is a specific summary of the advantages of city street lamps:      Stable and reliable power supply: The AC LED street lights are directly connected to the city power grid, and the power supply is stable. Whether it is sunny, cloudy or rainy, they can provide lighting services continuously and stably to ensure the normal operation of street lamps. This stability is crucial for urban night lighting, especially in severe weather conditions such as strong winds, rain and snow, the mains street lamps can still operate reliably to meet the needs of road lighting.      High brightness LED lamp beads: AC Mains street lamps usually use high-brightness LED lamp beads as light sources, which have high lighting brightness. During nighttime road lighting, mains street lamps can provide bright enough light to ensure the safe passage of pedestrians and vehicles. High-brightness LED lamp beads can also increase the lighting range, reduce the number of lamps used, and reduce investment and operating costs.        High quality electronic components: The AC LED street lights use high-quality LED lamp beads and electronic components, which have a long service life. Compared with traditional incandescent lamps and fluorescent lamps, LED lamp beads are not easily damaged and aged, and can maintain a longer service life. This reduces the frequency of lamp replacement and maintenance costs, and reduces the long-term operational burden of the city's lighting system.      High-efficiency LED light source: LED lamp beads used in AC LED street lights have high light efficiency and low energyconsumption. Compared with traditional incandescent lamps and fluorescent lamps, LED lamp beads have higher energy efficiency and can convert a higher proportion of electrical energy into light energy, thereby reducing energy waste and environmental pollution. In addition, mains circuit lights can also use intelligent energy-saving control systems to flexibly adjust according to actual lighting needs to further reduce energy consumption.        Diversified application scenarios: AC LED street lights are suitable for various roads and places, such as urban roads, highways, bridges, tunnels, etc. Especially in areas with extensive power grid coverage and stable power supply, AC LED street lights are the preferred lighting solution. Its wide applicability makes mains circuit lights an indispensable part of the urban lighting system.      Easy installation and maintenance: AC LED street lights are easy to install. You only need to fix the lamps in the designated location and connect them to the city power system. At the same time, their maintenance is relatively easy. You only need to regularly check and clean the lamps and replace damaged bulbs and other parts. Compared with new lighting equipment such as solar street lights and wind street lights, mains street lights do not need to consider energy supply and storage, reducing the complexity of maintenance and management.