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Solar Street Light Troubleshooting Method 1、Indicator Lights When the solar charge controller powers on, it will detect itself. If it passes the self-inspection, the three indicator lights will light up for about 10s. If not, only the red indicator light will light up to indicate the fault. Generally, the fault is caused by the wrong parameter setting. Please reset the parameters and restart the solar charge controller to see if the problem is figured out. 2、The Solar Charge Controller Solar charge controller is the central component of the whole solar street light system, which controls input voltage, input current, output voltage and output current of battery, LED light source and solar panels to prevent the battery from overcharging or overdischarging. If the solar panels can not charge the battery, the lighting time will be irregular and the current will be unstable. If the indicator light of the controller flashes abnormally or does not light up at all, then the controller needs to be replaced. 3、Lighting Time Sometimes the lighting time of the solar street lights in the same road is not same. Actually, the lighting time of solar street light depends on the solar panel voltage. At the same time, the output voltage of solar panels will differ based on the location, irrigation angle and cleanliness. Therefore, the lighting time will be inconsistent. Generally, it is normal that the lighting time difference is less than 10 minutes. If it is more than 10 minutes, you should check whether the solar panels are sheltered by something or not. 4、Solar Street Light Battery The gel battery features long service life and no maintenance, which is widely applied to the solar street light. The battery damage will directly affect the effective lighting time. The simplest method of detecting battery fault is to charge the battery for four hours under sufficient sunlight and then use the multimeter to check the voltage and current of both electrodes of battery. Compare the measured values with the values that are marked on the battery surface. If they are inconsistent, you need to change the battery. 5、Power Supply System If the solar street light can not light up, first you need to check the components which may be damaged. The you should consider of the power supply system. You can check the overcharge voltage value and overdischarge voltage value. But in solar street light system, there are few charging problems based on the annual average data. Then comes to the discharging problem. Basically the overdischarge voltage of storage batteries from different brands is 10.5V. The discharge rate of battery is 0.1C, while the discharge rate of solar street light system is 0.025C. The battery electricity will run out under the circumstance of insufficient sunlight such as winter and continuous rainy days. The above are some of the solar street light troubleshooting method. We hope they will help you figure out the problems.View Detail
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The Requirements for Working Environment of Solar Street Light Nowadays, there are more and more solar street light putting in use in every corner of the world. Solar installers are supposed to know that solar street light has requirements for its working environment.A double-arm lamp is a solar street lamp with two lamp arms and two lamp caps. This kind of street lamp usually has two forms, one is the arm symmetrical, and the other is asymmetrical. Usually symmetrical double-arm street lights will be installed on the green belt in the middle of the multi-lane road to illuminate the passing vehicles and guide safe driving. The lamp arm on the side of the carriageway should be installed higher and the output power should be higher, while the side of the sidewalk should be shorter and the power should be lower. Solar double-arm street lights are richer in shape than single-arm street lights, and can shape the beauty of space. But it should be noted that this kind of street lamp is not suitable for installation on a single road or some narrow roads. The type of solar street lamp also determines its special use environment. Solar garden lights are generally installed in the yard. In addition to achieving a predetermined lighting effect, when designing this kind of light, the designer must also take into account the artistic and ornamental aspects. Antique lamp is a kind of street lamp that adds Chinese elements to give people a classical and simple feeling. This kind of street lamp can better modify the surrounding environment. Many antique lamps are also designed with double arms, or four arms, six arms, etc., which are very decorative. They are generally used in some ancient architecture theme parks or private houses. The installation requirements of solar street lights in urban and rural areas are also different. At night, the traffic flow of rural roads is not large. Generally, one-way light distribution is used to install to ensure that the installation distance is about 20-25 meters. If the distance is less than 20 meters, it will affect the lighting of some roads. If you want to install solar street lights with a height of 8 meters, you must ensure that the distance between the street lights is 25 meters and 30 meters. The distance between the two street lights should be installed by the cross light distribution on both sides. This method is mainly used for road whose width is 10~15 meters. The ambient operating temperature of solar street lights is generally -20~60 degrees. The battery capacity should be appropriately increased for use in a relatively cold environment. There should be no direct light source above the solar panel, so as not to make the lighting control system misrecognize the daytime and cause misoperation. It should be noted that the working environment should not be too humid, as the service life of solar street lights is easily affected in a humid environment. When installing solar street lights in rural areas, you should pay attention to the topography of the installation site to see if solar street lights can be installed. Try to avoid locations that are easy to collapse to ensure normal installation and subsequent use.View Detail
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Solar Street Light Outlook Nowadays, solar street lights have become the lighting sources being mostly used for outdoor lighting. Solar energy is the solar street lights’ primary energy source. Solar panels, which always placed on the integrated poles, power the street lights. Since the demand for continuous power and lighting has increased both in urban and rural areas, the development prospect for the solar street lighting market has drastically expanded. Some aspects, for instance, technological innovations in terms of the street lighting design, has brought about a reduction in the components of street lighting; hence, making them an appealing alternative to traditional street lights. The global solar street lighting market size is valued at $5.7 billion with sales of 1,545.9 thousand lighting units in 2019 and projected to witness a CAGR of 9.4% during the forecast period (2020-2030). The declining price of solar street lighting solutions and increasing number of smart cities are the major growth driving factors. Besides, increasing urbanization in developing regions is creating ample opportunities for the solar street lighting industry to grow. Aside from the aforementioned factors, the growing number of smart cities is also contributing to the soaring sales of solar street lighting systems around the world. Over the last few years, there has been a significant increase in the construction of smart cities in countries such as the United States, India, China, and South Korea, and this trend is expected to continue in the near future. Furthermore, many countries' governments are making large investments in the development of smart cities, which is also increasing sales of solar street lights. According to the research, the highway and roadway category held the largest solar street lighting market share in 2019, owing to wide application of lighting products in highways and roadways. The category is further expected to grow fastest in the market during the forecast period. This can be ascribed to increasing government focus toward high-class infrastructure developments, which is further pushing the demand for outdoor lighting. During the historical period (2014-2019), Asia-Pacific region held the largest share in the global solar street lighting industry, due to increasing infrastructure projects and government initiatives in China, India, Japan, Australia, and South Korea for the deployment of solar lighting systems. According to the International Energy Agency (IEA), China was the largest market in the APAC region in 2019 for the implementation of solar lighting system solutions and accounted for 42.8% share in total global solar photovoltaic (PV) capacity. The APAC region is also expected to maintain its dominance in terms of market share in the industry during the forecast period. Factors that affect solar street lighting market’s size Awareness Consumer education is among the top factors facing solar street lights’ penetration into the market. It is important to consider raising the level of awareness of the target market through stating the available options, their benefits, together with the hazards associated with the use of more dangerous sources of energies to light people’s homes. If consumers get appropriate awareness, it becomes easier for more people to trust solar street lighting products; thus, increasing the size and forecast of the solar street lighting market. Enabling Environment This is assumed to be the prevalent conditions in the areas or countries supporting the growth of the solar energy industry. The enabling environment is all about the roles of the national governments, and those of regulatory bodies. The business model viability of a nation can be gauged using national policies. Affordability to Finance Affordability affects the penetration of the solar street lighting market in most parts of the world. Limited financing alternatives can be felt on different distribution value chain levels, from the manufacturers to dealers, distributors, importers, and even users. The fact that there is no detailed information regarding the solar lighting industry, foreign direct investors have been facing a serious impediment. Thus, it is easy to conclude from the preceding paragraphs that demand for solar street lighting devices will increase globally in the coming years, owing primarily to rising construction of buildings and infrastructure modernization and renovation projects, increased construction of smart cities, and extensive development of roadways, railway lines, and airports in many countries. The solar street lighting industry will absolutely develop well in the future.View Detail
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How to determine the brightness of solar street light? -RS standards In recent years, with the deterioration of the global environment, solar energy resources have received more and more attention. For this reason, many countries are increasing the layout of solar energy resources. As LED technology is advancing with each passing day, its luminous efficiency is making an amazing breakthrough. So how do we judge the brightness of solar street light? In the market, due to the lack of understanding of the technology of the solar street light industry, users only roughly understand some simple mainstream configurations in the market, such as: how many watts are required for solar panels, how much capacity is required for batteries, and how many lamp beads are required. So you can only judge the brightness of the lamp with these parameters which are not so practical. This has actually fallen into a misunderstanding. These parameters are only superficial, and we need to understand the real needs of users. What is the purpose of a user buying a lamp? What is the original performance of the lamp? After all, their destinations fall on "lighting". Users buy lamps for lighting, and the original performance of lamps is also lighting. Based on this, Road Smart thought deeply and got the answer. Users are not buying parameters, configuration or power, but light. Only the total amount of light and the quality of light actually emitted by solar street lights are our initial requirements for solar street lights. After understanding this demand, we need to understand some industry-related knowledge first Industry knowledge How to judge the light source? 1. Average life: The average life of a light source refers to the time it takes for 50% of the light sources to fail after multiple light sources are turned on at the same time. 2. Strobe: The number of times the light source flashes per second. Failure to provide a stable voltage will cause a large strobe. A light source with a large strobe will cause the most damage to the eyes. 3. Luminous flux: For a lamp, the simplest explanation is the amount of light emitted, the unit is lumens (LM). 4. Luminous efficiency: The luminous efficiency of the lamp is how much light can be emitted per unit power, the unit is LM / W. 5. Rendering index: The degree to which the light source restores the color of the object. Generally speaking, the response of sunlight to the color of objects is the best and the most realistic, so their color rendering is defined as 100, and a color rendering index ≥70 is a good light source. 6. Color temperature: The color temperature of the light source is different, the light color is also different. Light with a low color temperature is yellowish, we call it warm tones, and yellow light has good haze permeability; light with a high color temperature is whiter, and white with high color temperature is used for road lighting. It has intermediate visual effects, good visibility, and brighter than yellow light. How to choose a light source? After knowing the relevant industrial knowledge, we need to know how to choose the light source. Here are some references for high-power LED light sources. 1. Efficient use of light. Using lamps with patented lenses to improve the utilization of light. 2. Integrated design. The integrated design makes the LED directly connect with the shell, and the heat is radiated through the shell cooling wings and air convection, which fully guarantees the service life of the LED street light. 3. Using street lights with uniform illumination can solve the problems of concentrated light beams and obvious dark spots. So that the illuminated area is larger and the illumination is more uniform. 4. No glare & no strobe. Eliminates visual fatigue and disturbance of sight caused by glare of normal street lights to improve driving safety; 5. Green and environment friendly. Doesn’t contain pollution elements and cause no pollution to the environment; After knowing the principle of light emission, we need to determine the needs. [Determine requirements] The purpose of users buying lamps: lighting. Brightness of illumination: luminous flux Customer's Ultimate Need: Luminous Flux 【Analysis】 At present, the solar LED street light market is chaotic. Many users and suppliers stay on the previous configuration and power, but with the advancement of technology, we need to redefine light sources. We can clearly find that 10 years ago, the countrysides used 100W light bulbs illuminated the room. Later, we used 30W-40W energy-saving lamps to illuminate the room. And finally developed to LED light sources. A 5W -15W LED light can illuminate the entire room, even brighter. Light bulbs of different powers provide the same brightness, but light bulbs with lower power are brighter and more energy efficient. What is the reason? Let's compare the following data: Luminous flux (LM) = Power (W) x Luminous Efficiency (LM) Power (W) Luminous Efficiency (LM/W) Luminous flux (LM) 20 120 2400 20 150 3000 The same power, different light effects, different brightness The higher the light effect, the brighter. Conclusion The brightness of a lamp cannot be simply measured by power, but by the luminous flux. Regardless of power, brightness, configuration, etc., it will eventually return to how much light it emits. Only the light that this lamp really emits is our ultimate demand. According to this demand, Road Smart pioneered the RS standard, which judges and tests the light by the total amount of light radiation and the quality of light The development of the industry requires standards, and with standards, the industry can develop in a standardized way. In the future, the Road Smart will continue to work hard to lead the solar lighting industry to intelligent and standardized development and promote the clean and green development of global energy.View Detail
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The Characteristics of Solar Street Light in Parks Solar street lights use solar energy as the power supply to provide road lighting at night. The light-post and battery are design into an integral part with wind resistance and intelligent charging and discharging mode. The investment cost of solar street lights in parks is also relatively small. Once users make a one-off investment, they can be able to use the solar street light for a quite long period. Besides, the cost of one-off investment is lower than that of AC power. The solar street light system refers to an independent distributed power supply system. It is not restricted by geographical area, not affected by the installation site. Besides, when installing the solar street light, there is no need to excavate the road for wiring and pipe buried construction. On-site construction and installation are very convenient, and it does not require a power transmission and transformation system. It is environmentally friendly and energy-saving, and can bring good comprehensive economic benefits. It is very convenient to add solar street lights to the roads which have been built. There are many garden lights in parks. The unique secondary optical design of the LED street lamp holder makes the light of LED street lamp holder light up the area that needs light, and further improves the illumination efficiency to achieve the purpose of energy saving. The LED light source efficiency is currently up to 90-110LM/W. Theoretically this value is supposed to be 250lm/W. The overall luminous efficiency of the LED street lamp holder is higher than that of the high-pressure sodium lamp. The light color rendering of LED street lamp holder is much higher than that of high pressure sodium lamp. The CRI (color rendering index) of high pressure sodium lamp is only about 23, while the CRI of LED street lamp holder is more than 75. From the perspective of visual psychology, averagely, to achieve the same brightness, illuminance of LED street lamp holder can be reduced by more than 20% than high-pressure sodium lamps. Solar street lights in the park are powered by crystalline silicon solar cells. The maintenance-free valve-controlled sealed batteries store electricity. Ultra-bright LED lamps are used as light sources. Solar street lights in the park are controlled by intelligent charge controllers to replace traditional street lights which are powered by public grid. No need to lay cables, no AC power supply instead of DC power supply and no electricity bills, which are three of the advantages of solar street lights in the park. They are mainly applied to urban roads, residential squares, industrial parks, tourist attractions, park green belts and other places. Solar street light is under the control of the intelligent controller. The solar panel absorbs the solar light and converts it into electricity. During the day, the solar cell modules charge the battery pack, and at night, the battery pack provides power to the LED light source to provide lighting.View Detail
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Road Smart IoT Intelligent Solar Street Lighting System Introduction The solar street light intelligent monitoring and control system developed and designed by Road Smart is a system for monitoring various working environments of solar street lights, and controlling and adjusting solar street lights’ working status according to lighting demand.This system effectively extends the service life of solar street light and efficiently uses solar power to achieve the best lighting effect through the combination of core technologies. Road Smart IoT intelligent solar street lighting system is mainly used in urban/countryside main roads or secondary main road lighting. The following are the features and advantages of this system. 1. The Internet of Things remote control technology can realize remote monitoring, read and write solar street light parameters, timely manage the various states of the solar street light, and facilitate after-sales service. The management platform connects solar street lights through communication technology, which shows the light status and parameter settings, and at the same time adjust the brightness and working mode of the lights to realize human-computer intelligent interaction. 2. Adds intelligent cameras to realize high-definition security monitoring. 3. The built-in maximum power tracking algorithm can quickly and accurately track the best operating point of the IV curve. The MPPT tracking efficiency can reach up to 99.9%, which can significantly improve the energy utilization efficiency of the photovoltaic system, which is 15%~30% higher than the traditional PWM charging efficiency. When there is something covering the solar panel such as dust, tree shadows and bird droppings or part of the panel is damaged, the IV curve will have multiple peaks. However, the traditional single-peak MPPT algorithm cannot track accurately the maximum power point. Road Smart controller adopts multi-peak tracking technology, which can still accurately track the maximum power point and improve the conversion efficiency of solar panels. 4. Intelligent Charge and Discharge Management Technology Road Smart selects and uses A-grade lithium iron phosphate battery which has a stable electrochemical performance and excellent safety performance. The charge and discharge cycle are more than 2,000 times.At the same time, it adopts Road Smart's original intelligent balance and intelligent dual (software and hardware) protection technology. After 2000 cycles of charging and discharging, the battery capacity remains at 90%, which makes the battery more stable and extends the service life. It is 4 times longer than that of lead-acid batteries. 5. Intelligent Efficiency Control 5.0 Technology Based on AI, DL for chip and first-line data that are collected, sorted and analyzed in the past 10 years, Road Smart researches and develops highly precise and refined 5.0 version intelligent efficiency control technology. AI could intelligently judge the recent weather conditions, and then reasonably plan the discharge efficiency which make the solar light works longer in the cloudy and rainy days. 6. Intelligent Temperature Control Technology Road Smart independently researches and develops the intelligent temperature control technology and adds temperature protection function to the battery and controller, which automatically adjusts the charging and discharging parameters to avoid high and low temperature damage to the battery. In the regions that are too hot or too cold, this technology can significantly extend the service life of storage battery.View Detail
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How to waterproof the LED Solar Street Light? Nowadays, LED solar street lights are applied to a wide range of areas around the world. They are popular because of their environmentally-friendly and cost-saving features. As they are installed outdoors, they are always exposed to wind, rain and even snow. Moisture and Humidity knows very well to find its way and seep into the interiors of LED solar street light thereby causing significant damage. Therefore, it is important to waterproof the LED solar street light and ensure that they performs well in waterproof function. IP Rating Actually, we will notice the parameter “IP Rating” in the technical specification of solar street light. IP Rating (Ingress Protection Rating) is the rating used to classify the different levels of sealing effectiveness provided by an electrical enclosure against foreign bodies such as objects, water, dirt, etc. It gives you a clearer picture of how water resistant the item is, compared to vague marketing terms such as “waterproof”. For enclosures, the typical waterproof IP ratings are IP67, IP66, and IP65 enclosures. So what do these ratings mean? IP65: Able to protect against water jets. Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects. IP66: Able to protect against powerful water jets. Water projected in powerful jets (12.5 mm nozzle) against the enclosure from any direction shall have no harmful effects. IP67: Able to protect against Immersion up to 1 m. Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion). Customers can choose the solar powered waterproof lights according to their demands. When it comes to waterproofing, we need to pay attention to the following aspects. The Battery The battery is the core part of LED solar street light. Its main function is to store electricity generated by solar panels and to supply it to the lighting system. The battery of the solar street light is buried in the ground so as to avoid being flooded. Although it is said that the outer layer of the battery has been dealed with waterproof measures, it needs to be covered with cement around to further strengthen the waterproof measures. The Solar Charge Controller Besides, we need to pay attention to the solar charge controller for they are quite significant to the LED solar street light. During the day, the controller converts solar energy into electricity, and at night the battery provides electricity to the street lights. Most of the controllers are installed in the lampshade and battery box. Generally, the water will not enter, but we need to be careful. During the installation, we’d better bend and fix the internal connecting wires of the controller terminals into a "U" shape. The outside connecting wires are also needed to be fixed to a "U" shape, so that rainwater cannot enter and result in short-circuit. The Lamp Holder The waterproofing of LED lights is very simple, just need to make a simple lampshade like ordinary electric lights to waterproof it. The sealing performance of the lamp cap of the solar street lamp must be high, and the waterproof treatment of the lamp cap can ensure the service life of the street lamp. Therefore, the choice of the street lamp shell is siginificant, the waterproof grade can be IP65 or IP66. The Wiring System Last but not least, we are supposed to check the waterproof function of the wiring system. Check whether there is poor contact of joints, water seepage or tape falling off and work out the problems as soon as possible. The amount of rainwater in summer is quite great. Although the rainwater does not enter the light pole in most circumstances, but the condensation of water vapor will also lead to a short circuit. We hope that the above information on how to waterproof LED solar street lights will help you. Before the installing and using of LED solar street lights, the owners should pay attention to the waterproof measures for each parts of the LED solar street lights.View Detail
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How to change the solar storage battery of solar street light? If the solar storage battery in the solar street light is broken, what should you do? The commonly used method is to directly dig out the gel battery and replace it with a battery of the same capacity. This method also has its disadvantage that the cost is too high. First of all, the price of the gel battery itself is relatively high. Take a 6-meter solar street light as an example, the capacity of gel battery is at least 90AH. Before maintaining the battery, you should first clean the dust on the surface of the battery, and remove the rust on the terminals. Remove the battery cover, you can see the rubber vent valve of the battery. Carefully remove the vent valve, save it, and observe the internal condition of the battery. Add electrolyte containing 0.1%-0.5% sulfuric acid to the battery until there is flowing electrolyte on the battery. At the same time, check whether there are black impurities. If there are obvious black and turbid impurities, it means that the positive plate of the battery has been obviously softened. That is to say, it is hard to repair the battery. To replace the solar street light storage battery, first disassemble the casing and remove it in accordance with the screws of the solar street light. The removed screws must be carefully placed. After opening the casing, you can find the battery, disassemble the battery to see its specifications, and choose a new battery of the same specification. Install the new battery and then turn on the power supply to see if the solar street lights lights can run normally, and if so, remount the casing. The service life of solar street light storage battery will not only be affected by external maintenance, but also closely related to internal heat accumulation. If the solar storage battery is overcharged, the internal temperature of the battery will gradually rise and lead to thermal runaway, which will shorten the service life of storage battery. The following is the repairing method. The battery should be charged with constant voltage and limited current. At the beginning, it should be charged with a current of 0.1c-0.5c until the voltage reaches 16.2V. Keep this voltage value by reducing the current until the charging current drops to 0.03c. Connect the positive and negative outputs of the repair instrument to the positive and negative poles of the battery, turn on the repair instrument, and repair the battery. The first repair process should not be less than 48 hours. Discharge the battery with 0.1c current and record the discharging time. Multiply the discharge current value by discharging time is the capacity of the battery to be repaired.Repair and maintain the solar storage battery of solar street light can extend the service life of solar street light and save the maintenance cost. Related Articles:Solar Lights for Schools and CampusesInspection Method of Intelligent Solar Street Lamp HolderSmart solar street light installation specification Tags: all in one solar street light outdoor smart lighting solar garden lightView Detail
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How to design panel angle of solar street light When it comes to solar street light, the inclination angle usually refers to the angle between the solar panel and the horizontal ground. So what’s the best panel angle to maximize the energy efficiency of solar street lamp. Solar panel angle is the most important issue in the installation of solar lights, solar street lights, LED solar garden lights, solar landscape lights, and so on. A rationally designed inclination angle of solar panel can ensure the sun's radiant energy to the maximum extent, and effectively use the solar energy to generate electricity. The inclination angle is generally determined according to the geographical location (latitude, etc.) of the solar street lights' application site, make the front of the solar panel directly facing the sun, then designed the inclination angle with the maximum amount of light received. If conditions permit, the inclination of solar panels should be adjusted accordingly with seasonal changes. In addition, due to the different installation environments of solar street lights, it is necessary to consider the design of shadows and lighting taking. Road Smart solar street lamp adopts high conversion efficiency mono panel and rotating solar panel structure design, which ensures faster solar charge and no worry with bad weather, including cloudy and rainy days.View Detail