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      FAQ

      Some common problems with street lights that you can read carefully to save you time and worry!

      1ABOUT SUNVIS SOLAR

      Since its establishment in 2003, SUNVIS has been committed to research and development, production and promotion of high quality solar street lights, and provide one-stop solar lighting solution and professional services for our customers.

      We offer the entire set of solar street lights with a 3 years warranty and 24/7 after-sales service.

      As a Solar Street Light Manufacturer and Supplier in China, Customized Solar Street Lights are also Welcome

      2How much is the Solar Street Light?

      Full set of solar street lights includes: light poles, LED lamps, solar panels, batteries and controllers, etc., The different configurations, the prices are not the same.

      The solar street light price can only be determined if these basic parameters are determined. But we assure you that we will provide you with the best price and the best service.

      3How to find a reliable solar street light manufacturer?

      The quality of street lights on the market currently varies, and poor quality products will bring you no end of trouble.

      SUNVIS has been manufacturing street lights for 17 years, we have a stable sales staff, you can easily contact them no matter when or where you are.

      We have been supplying UNDP and UNHCR projects with consistent quality street lights for more than 5 years !

      SUNVIS SOLAR is your best partner for your future project.

      They Already Trust Us

      A list of our clients

      BUYERS GUIDE FOR SOLAR STREET LIGHTS

      At present, there are many solar street lights manufacturers in China. Also, solar street light manufacturer in India and USA, they manufacture different types of solar led street lights. But, the quality of the LED Solar Street Lamps varies, many customers do not know how to choose the right commercial Solar Street Light, Now, We will guide you how to select the best solar street lights for your project.

      The main thing about solar street lights is the Lifetime of the Solar Street Light System, the Lamp Brightness and the Autonomy days in rainy or cloudy days!

      First, Solar Street Light Lifetime:

      There are several factors to consider the life expectancy of the entire lamp.

      1. LED Constant Current Driver Lifespan

      Solar street light manufacturer often tells customers that they use the best LED chips, the best battery, so their Solar Street Light life is the longest.

      In fact, the solar LED street lights are using DC power driver, it is low voltage, but high current. So each component is very critical, as small as a connector resistance, wire resistivity.

      Of course, the actual use of solar lights has been proven that the Solar street light lifespan is mainly dependent on the battery lifespan and LED Driver lifespan.

      Take the LED chip an example, LED chip recognized life is 50,000-100,000 hours, but the conventional technology of LED driver constant current driver has an electronic component electrolytic capacitor, electrolytic capacitor life is generally 3-5 years, which determines the life of the LED driver.

      Solar Street Light Controller

      Our company uses the LED driver is a constant current solar controller, not only solves the compatibility problem of LED constant current source driver and solar street light controller, but also it does not need electrolytic capacitors, thus the LED driver life is not limited by the capacitor. So our solar street light life time is same as solar panel life.  

      2. Battery Life

      Usually, most of the solar street light manufacturer and supplier use AGM or GEL batteries for split solar street light, and Lithium Battery or LiFePO4 Battery are for All In One Solar Street Light. this kind of AGM or GEL battery lifetime is about 3-5 years, but our technology can do 8-10 years, this is because the life of the battery is mainly affected by the number of deep cycles and the working environment temperature.

      We have the patented technology that can save 70-85% power energy and greatly extending the cycle time of the battery deep cycle.

      In addition, the working environment temperature of the battery has a great influence on the life span, we use nano technology in the battery to make it breathable and waterproof, and bury the battery below the permafrost layer to make our battery get the best working temperature of 20-25 degrees, while most of the conventional solar street lights install the battery on the pole or the ground (because there is no waterproof design).

      So you can imagine that in the hot summer, the temperature of the battery box is so high that for every 10 degrees increase in temperature, the battery life is reduced by half.


      Second, the Brightness of the Whole Lamp

      Solar LED Street light is not to say that the greater the power of the light source the better, there are many LED solar street light manufacturers overstated the LED power, or to reduce costs to buy low-lumen LED chips.

      In fact, to achieve the same brightness, the lower the lamp power the better, It means it is energy saving. Now on the market, other companies' LED light efficiency is in the 80-100Lm/W, and high light decay, the light decay of 1 year is to 15% -30%.

      But our LED light source are with high quality LED chip and patented technology of low light decay structure and process, the luminous efficiency reaches 140-160Lm/W, light decay 10000 hours is less than 4%, the actual light decay is only 2-3%. So our LED lamp life span is much longer than other solar street light companies.

      Third, Autonomy days in Rainy or Cloudy Days

      At present, most of the LED solar street lamps can achieve only 2-3 days of continuous rainy days, which is far from meeting the requirements of climate change around the world, because most of the regions have more than 3-7 days of continuous rainy days, but our solar street lights can reach 3-5 times the conventional technology with the same configuration, and up to 35 days of continuous rainy and cloudy days of continuous light.

      Why is that?

      Our patented solar street light controller can make our solar LED street lights 70-85% energy-saving, that means our solar street light power consumption is only 20% of the same configuration of conventional solar LED lights

      So if the conventional technology can do six days of rainy weather, we can do nearly 30 days of continuous lighting in rainy days.

      How did we do it?

      The principle is as follows.

      1: The solar street lighting LED light source adopts digital drive technology (solar special constant current integrated controller), which saves 20% electricity compared to conventional technology.

      Solar street lights use the light source is LED, and LED light is needed to drive a constant current source of LED, conventional constant current source needs to consume about 20% of the power of the entire lamps, while we use LED digital constant current source drive technology, the controller's power consumption is only 0.0625 (IC) W, almost negligible, which makes our company LED street lights power consumption savings of nearly 20%.

      2: Solar Special Constant Current Controller, Intermittent Power Supply, Power saving nearly 50%.

      Conventional technology solar LED street lights must work continuously and constantly powered to the lamps, but our LED digital constant current driver, using intermittent switch power supply to the LED light source. It can achieve the LED chip half of the time with electricity and half of the time without electricity in the unit time, which immediately makes our solar street lamp energy saving 50%.

      After long time tested, the actual energy saving is more than 47.3%. The lamp temperature rise and light decay are 30-40% lower than conventional constant current technology. Extremely short switching time, the human eye and analog luminance meter is not able to sense.

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      3: Dim Mode can save more than 15% power.

      dim mode lighting

      In the second half of the night, the road pedestrians and vehicles will be greatly reduced, so you can set an energy-saving mode in the second half of the night, making the LED light source power slowly reduced to the power you want, and then maintained until dawn, while other supplier`s solar street light are suddenly dropped to a target value, so that the pedestrians and vehicles are very unfavorable;

      Generally, our dim mode in the second half of the night can energy-saving about 15%, to ensure that there is enough brightness.

      You can call or send an email to consult these specific configuration and the actual operation of the program, for a detailed understanding, we will provide you with the optimal configuration according to your needs, to achieve real energy saving and environmental protection!


      Solar Street Light Knowledge: Frequently Asked Questions

      1.What is solar street light?

      Solar street lights use sunlight as energy source. Solar panels charge the battery during the day and power the load at night. There is no need for complicated and expensive pipeline laying. The layout of the lamps can be adjusted arbitrarily. It is safe, energy-saving and pollution-free, and does not require manual operation. The work is stable and reliable and saves electricity bills. Maintenance-free.


      2. When installing solar street lights, do you need to install a grounding wire?

      Solar street lights are battery-powered, which belongs to low-voltage power supply. Do not connect to the mains power supply, So all the solar street light Manufacturers do not install the grounding wire.


      3. What is the difference between solar street lights and ordinary street lights?

      1. Solar street lights do not need wiring (easy to install)

      2. No electricity bill for solar street lights (save money)

      3. Solar street lights need to be installed in sunny places (installation is restricted)

      4. What are the advantages of solar street lights compared to traditional street lights

      1. Solar street lights use solar energy, renewable resources, and are relatively environmentally friendly. Ordinary street lights are electricity.

      2. Solar street lights will be more expensive because they have more parts, such as solar panels, batteries, etc. Ordinary street lights are unnecessary. it is electrified, it will be cheaper.

      3. The solar street light can be used directly after installing it. If there is a problem within two years, you can find the manufacturer for after sales service. It will be more troublesome to bury the wires for ordinary street lights, and it will be more troublesome in some places, and the wires are buried farther, and the maintenance problems of the wires are also troublesome. Some places are not suitable for embedding. This can be regarded as the market for solar street lights.

      4. It's safe. Solar street lights are low voltage, generally 12v, which is indeed safer. Normally, 220v will be more unsafe. In addition, there will be some safety hazards when buried in the wire.

      5. How many meters are solar street lights?

      The country has no corresponding standard requirements for the distance between the poles of rural street lights. Rural street lights generally use single-sided lighting. According to the regulations on distances in urban road lighting (national standard number CJJ45-2015), as long as the distance is less than or equal to 3, The installation height can be doubled. For example, the installation height of the light pole is 8 meters, then the distance within 24 meters is in line with the requirements. But for solar street light, all the solar street light Manufacturers suggest the distance is between 2.5-3 times of the solar street light pole height.

      6. What are the classifications of solar street lights

      Generally, there are two types of integrated solar street lights(All in one solar street light) and split solar street lights.

      7. Solar street light installation requirements:

      First of all, there are restrictions on the altitude of the area where solar street lights are applicable. Ordinary solar street lights are suitable for areas within 2000 meters above sea level, that is, the entire central and eastern plains of China. Because altitude also affects the use of batteries and wiring.

      Secondly, solar street lights are best used at -50°C-70°C. Too high temperature will not work properly, and low temperature will slow down its operation.

      Thirdly, the wind resistance level of the solar street lamp is 12, that is, there will be no damage within the 12 wind, and it should be used in China.

      In addition, the earthquake resistance level of solar street lights is 8, unless they are damaged by a major earthquake. Normal areas will not cause problems.

      Finally, solar street lights can be used normally in areas where the humidity cannot be greater than 80%. If the humidity is exceeded, the air humidity will be too high, which will make the damp connection of the electronic components unstable and affect the system lighting.

      8. What is the standard of solar street light?

      DB37/T 730-2007 Technical requirements for solar lamps

      This standard specifies the definition, classification and naming, conditions of use, technical requirements, test methods, inspection rules, signs, instructions for use, packaging, transportation and storage of solar lighting products. So the solar street light suppliers should follow this requirements when produce the solar street lamps.

      9. Are solar street lights easy to use? How long will it last?

      Solar street lights are mainly stored by solar charging, and the lights are automatically turned on at night, which is similar to the city lights, but the subsequent cost is cheaper than the city electricity, and it is suitable for rural installations or households. And also the solar street Manufacturer can produce the lamps according to your requests.

      10. How many years can solar street lights be used?

      Light poles and solar panel brackets are hot-dip galvanized for 15 to 25 years,

      Solar panels are 15 to 25 years warranty.

      The LED lamp is a regular for more than 3 years.

      The controller warranty is normal for more than 3 years per year. The discharge depth of the gel battery is within 20% for 3 to 6 years.

      11. How many watts are solar street lights generally?

      This mainly depends on where you install it and how high the pole is. The suggestions are as follows:

      If the height of the light pole is 2.5m, then you can use an 8w garden light;

      If the pole height is 3m, then you can use a 12w solar garden light;

      If the pole is 5m, then you can use 15w or 21w solar street lights.

      If the pole is 6m, either 28w or 30w will do.

      If the pole is 7m, then use a 40w solar street light.

      If the pole is 8m, then you can use 56w or 60w solar street lights.

      If it is 10m, then you can use a solar street lamp of about 80w, and a 100w lamp for about 12m. It is recommended that you do not install a solar street lamp for the taller pole.

      12. Is solar street light practical?

      Solar street lights do not need to be switched, and rely on detecting whether the solar power generation panel is generating electricity to switch or turn off the lights.

      Turn on the light when it is dark and not generate electricity, turn off the light when it is dawn and generate electricity

      13. Why is solar street light not widely popular?

      The main reasons why solar street lights are not widely popular are:

      1. Solar street lights are not suitable for installation in all places, (the main reason is to ensure that the solar panels have enough lighting time)

      2. Especially when the continuous rainy days are long, the brightness of solar street lights will decrease significantly.

      3. The cost of solar street lights varies, and the quality is good or bad.

      14. Can ordinary street lights be changed to solar street lights?

      Generally speaking, if the ordinary street lamp is transformed, the street lamp pole is still useful. The ordinary street lamp lamp holder is basically useless (generally the ordinary street light source is a high-pressure sodium lamp or an energy-saving lamp).

      The above is not the same. LED solar street lights are powered by 12v or 24v. The light pole needs to be reprocessed and needs to be modified on the original basis, plus the battery panel bracket.

      The rest is based on the local sunshine conditions and specifics. Use the set time to configure the street light, and then purchase the solar panel battery controller as required, and install it back.

      Of course, it should be noted that the solar panel part of the solar street light needs to be able to illuminate the solar energy throughout the year, otherwise it will cause the solar panel to not emit the circuit and the light does not turn on.

      15. The cost of solar street lights

      The price calculation of solar street lights is multifaceted.

      The components of solar street lights include light poles, brackets, batteries, battery boxes, controllers, LED light sources, and photovoltaic modules. So many more accessories are naturally much more expensive.

      The main reason is that the battery and photovoltaic modules account for the largest price. How much is the specific solar street lamp cost, it is best to communicate with the solar street lamp manufacturer specifically, because the natural environment of different use areas is different, and the lighting time requirements of each customer are also endless.

      The same, so it is better to communicate with solar street light manufacturers for the sake of caution.

      Because of the new renewable energy policy, now new projects are gradually replaced with solar street lamps. Compared with the same type of products, the most cost-effective solar street lamp Manufacturer is SUNVIS SOLAR.

      16. What are the possible reasons why the solar street light does not turn on?

      1. The main reason why solar street lights can be bright is that there is a battery, and there are three types of batteries, one is a lead-acid battery, and its service life is only about two years.

      The service life of gel batteries is relatively long, about three years. Many solar street lights now use lithium batteries, and the longest service life can reach about 6 years.

      If you choose lead-acid batteries, they may be damaged after one or two years, making the time for street lights to illuminate shorter. Failure to light up.

      2. It is also possible that the controller of the solar street light is damaged. After wind, rain, lightning, or other reasons, the controller cannot operate normally.

      3. It is also possible that the light source of the lamp holder is damaged. If it is not artificially damaged, it may be that the battery is damaged or other natural reasons have caused the solar street light to fail to operate normally, and there is a problem of not lighting or flickering.

      4. The last reason is the aging of the line. This phenomenon is also common. The aging of the line is disconnected, and the solar street light cannot work normally.


      If you still can not solve the problem, pls contact your solar streetlight supplier, they will give you the specific solution.

      17. Why choose solar street lights?

      Because solar street lights don't need AC power, they don't need to pay electricity bills, and the power generation comes from sunlight. One investment, lifelong use. So choose solar street lights.

      18. How to choose and configure solar street lights?

      The configuration of solar street lights mainly depends on your road width and your lighting requirements. The width of the road surface can determine the height of the light pole and the size of the light source. The lighting requirements refer to how long it will be on every night and how many rainy days are guaranteed, so that the size of the solar panels and batteries can be calculated.

      19. How many days can solar street lights shine on rainy days?

      The general number of rainy days for solar street lights is 3~5 rainy days, that is to say, if there are 3 rainy days or 5 rainy days in a week, the solar street lights can still be bright, but if the stored electric energy is low, The brightness will be slightly weaker.

      If you want more rainy days with solar street lights, the configuration should also be adjusted accordingly.

      Of course, if it rains throughout the year and there are too many rainy days, solar street lights are not recommended. If the sun is full, solar street lights are highly recommended because they are really good.

      20. What kinds of batteries for solar street lights are there?

      At present, there are four main types of solar street lamp batteries on the market, namely lead-acid batteries, gel batteries, ternary lithium batteries and lithium iron phosphate batteries. Now more and more solar street light Manufacturer are choosing Lithium battey for their solar street light, because it is long life span, can reach to 2000 cycles.

      21. Where is the solar street lamp battery installed?

      The battery of solar street light, as the coarse energy component of the solar street light system, is generally placed in the buried box, and the buried box is generally placed in a specially built cement pool next to the light pole.

      At the same time, the battery and the need to be prepared The steps of heat preservation, air diffusion and waterproofing are very important. Nowadays, maintenance-free batteries are generally used, which are basically maintenance-free and very convenient.

      There are also some southern solar street lights that can also put the battery in the specially welded battery box at the bottom of the light pole. It is easy to disassemble, but it will affect the life of the battery under high temperature conditions.

      So, as a 17 years of solar street light manufacturer, we sugest the solar street light battery should be installed underground to keep the battery in good temperature.

      22. How to consign solar street lights?

      When the solar street light is shipped, the different accessories are packaged separately. The original packaging is packed in bubble bags, and there is also a layer of foam box packaging, and there is a layer of carton packaging.

      23. How to maintain solar street lights?

      Solar street lights do not require much maintenance work. If the local dust is large, the dust on the solar panels on the solar street lights should be cleaned regularly.

      Excessive dust will reduce the power generation efficiency of the solar panels. Refer to the structure diagram of the solar street light system.

      The top solar panel needs to be cleaned regularly.

      Take care to prevent the solar panel from being blocked or covered, which will easily cause the power generation system to be low.

      24. How to repair the damaged solar street light?

      Solar street lights are rarely broken. If they are really broken, the battery may be out of power, or there may be a problem with the controller wiring.

      It is recommended to look at the wiring of the controller first.

      If the wiring is correct, connect the light source of the solar street light to another battery to see if the light is on.

      If the light is not on, your problem is on the light, just change it.

      If the lamp is on, then the problem is on the battery, the battery is dead or the battery is broken, just replace the battery. Solar panels are generally not broken.

      25. Where to buy solar street lights?

      Nowadays, where the traffic is developed, where to buy it is the same. As long as the product is good, it is just a matter of freight. Solar street light is a non-standard product. There are many factors that affect its price, such as the size of light poles, lamp size, battery panel size, battery size, control The size of the device, the price of the design are different, and the price is different in different places! SUNVIS SOLAR as a 17 years manufacturer and supplier of solar outdoor lighting hopes to help you!

      26. How many types of solar street lights are there?

      Let's do the popularization of solar street light knowledge, During the day, under the control of an intelligent solar controller, the solar panel absorbs solar light and converts it into electricity to charge the solar street light battery, while at night the battery bank provides electricity to power the LED light source. The overall solar street light can be summarised as these:

      (1) Lithium Battery Solar Street Light.

      (2) GEL Battery Solar Street Light.

      (3) Utility complementary Solar Street Lights.

      (4) Wind and Solar Hybrid Solar Street Lights.

      27. Do solar lights stay on all night?

      Yes, they can, as they are equipped with battery, but if the batteries are not charged in time the solar street light will go out, but they can be used as a back-up power source through the AC grid during long periods of cloudy and rainy weather.

      28. How long do solar lights Last?

      The battery capacity of solar street lights generally has 40 hours of power supply to ensure 3 days of continuous rainy days, so solar street lights can be lit all night long

      29. Why do my solar lights not stay on all night?

      Solar street light lighting time is determined by the controller, solar street light has a battery, as long as there is electricity inside, when it is dark, automatically turn on the light. They are generally factory set and generally marketed with light control, time control and human induction.

      At the same time, the lighting duration of the solar street light can also be set according to the user's requirements.

      For the same location, it has a direct relationship with the selection of solar modules and battery ratios. Under the premise that the power of the light source is determined, the larger the solar cell module power and battery capacity chosen, the longer the lighting time that can be guaranteed, and vice versa, the shorter.

      A standard solar street light system configuration should generally guarantee 10 to 12 hours of lighting time per day.

      30. Can I put normal batteries in solar lights?

      In fact, there is not much difference between the solar battery and the ordinary battery in terms of parameters, except that there is a focus on details such as waterproofing and depth of discharge, but there is not much difference in the use of functions;


      however, before using the original solar street light, you need to determine how much the working voltage is, whether it is 12V or 24V, in addition, you also need to calculate how large a capacity battery is needed for the street light.

      In other words: before using a certain battery, you need to know what is the working voltage of the electricity-using equipment? How large a battery is required.

      Note: These require experience or professionals to determine, and it is recommended that you seek professional assistance to change them.

      31. Can I leave solar lights out in the rain?

      Yes, all solar street lights are waterproof, with a waterproof rating of IP66.

      32.How do you charge solar lights without sun?

      Stand-alone solar street lights cannot be charged if there is no sunlight. But now there are AC bybrid solar street lights and wind hybrid solar street lights, which can use AC or wind power to charge the built-in battery if there is no sun

      33. How do I choose a solar street light?

      Due to the many brands of solar street lights on the market, many consumers want to buy but no way to start, for this reason I will teach you how to select solar street lights:

      First, look at the whole.

      The so-called look at the whole is to see whether the solar street lamp shape and workmanship is beautiful, there is no problem of skew, which is the basic requirements of solar street lights.

      Second, look at the quality.

      Usually high quality solar street lights spare parts need to be certificated by the lab, so the buyer can ask the supplier to provide relevant certificates or certificates, otherwise do not buy. The main is battery voltage and capacity and pole thickness.

      Third, look at the after-sales.

      Solar street lights also need to have a warranty, if the street lights in a short period of time really has problems, you need to find manufacturers to send spares to repair, If there is no after-sales solar street light manufacturer, no matter how low the price, do not buy

      Fourth, Look at the price

      As the saying goes, you get what you pay for. If a solar street light manufacturer gives you a quote that is too low, you need to give some thought to why the price is so low. Is it a case of which parameters are misrepresented? Is it the second-hand batteries used?

      If the above cannot answer your question, please contact us, our technical experts will be at your service at any time

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