With the low-carbon environmental protection era, the use of new energy solar energy is becoming more and more popular, which also makes solar LED garden lights more and more common in daily life. Solar LED garden lights use the sun’s light energy during the day and store them in special batteries. In the installation, use at night to play a role in lighting. So what is the function of solar LED garden lights?The role of solar LED garden lights:1. Illumination at night. Solar courtyard lights are installed on both sides of the pedestrian road in the community to provide lighting for people traveling at night.2. It has the content of rich community or courtyard space. The light emitted by the solar courtyard lamp matches its shape, forming a contrast between light and dark, highlighting the key landscape, echoing the night environment of the community, and attracting people's attention.3. Decorative function. The courtyard lamp itself has a peculiar shape, customized shape, and texture, decorating the overall landscape of the community or courtyard.
Advantages and disadvantages of solar powered street lightsAdvantages:Energy-saving: Solar powered street lights use natural light sources in nature to reduce electrical energy consumption; environmentally friendly, solar powered street lights are pollution-free, no radiation, and conform to modern green environmental protection concepts; durable, most of the current solar cell module production technologies are sufficient to guarantee 10 The performance of the solar cell module does not decline over a year, and the solar cell module can generate electricity for 25 years or longer; the maintenance cost is low, and the maintenance or repair of conventional power generation, power transmission, street lights and other equipment is very expensive in remote areas far away from towns. Solar powered street lights only require periodic inspections and very little maintenance workload, and their maintenance costs are less than conventional power generation systems.Safety: Mains lighting street lights may have potential safety hazards due to various reasons such as construction quality, aging of materials, and abnormal power supply. Solar street lights do not use alternating current, but use batteries to absorb solar energy and convert low-voltage DC into light energy. There is no hidden safety hazard; high-tech, solar powered street lights are controlled by intelligent controllers, which can be controlled according to the natural brightness of the sky and people in 1d. The brightness of the lamp is automatically adjusted by the brightness required in various environments; the installation components are modularized, and the installation is flexible and convenient, which is convenient for users to choose and adjust the capacity of the solar street lamp according to their own needs; The solar street lamp with independent power supply and off-grid operation has power supply Autonomy and flexibility.Disadvantages:High cost: The initial investment of solar powered street lights is large. The total cost of a solar street light is 3.4 times that of conventional street lights with the same power; the energy conversion efficiency is low, and the conversion efficiency of solar photovoltaic cells is about 15% to 19%. In theory, the conversion of silicon solar cells The efficiency can reach 25%, but after the actual installation, the efficiency may be reduced due to the obstruction of surrounding buildings. At present, the area of solar cells is 110W/m2, and the area of 1kW solar cells is about 9m2. It is almost impossible to fix such a large area on light poles, so it is still not suitable for expressways and main roads; it is greatly affected by geographical and climatic conditions. Because of the energy provided by the sun, the local geographic climate and weather conditions directly affect the use of street lights.Insufficient light demand: Long rainy days will affect the lighting, causing the illumination or brightness to fail to meet the requirements of the national standard, or even not lighting. The solar street lights in the Huanglongxi area of Chengdu are insufficient during the day, resulting in the night time Too short; component service life and low cost performance. The price of the battery and the controller is relatively high, and the battery is not durable enough and must be replaced regularly. The service life of the controller is generally only 3 years; the reliability is low. Due to the excessive influence of external factors such as climate, the reliability is reduced. 80% of the solar street lights on Binhai Avenue in Shenzhen cannot rely on sunlight alone. They are the same as Yingbin Avenue in Dazu County, Chongqing. They all use the dual power supply mode of city electricity; management and maintenance are difficult.Difficulty in maintenance: the maintenance of solar powered street lights is difficult, the quality of the heat island effect of the solar panels cannot be controlled and tested, the life cycle cannot be guaranteed, and the unified control and management cannot be performed. There may be different lighting conditions; the illumination range is narrow. The currently used solar powered street lights have been inspected by the China Municipal Engineering Association and measured on the spot. The general illumination range is 6-7m. If it exceeds 7m, it will be dim and unclear, which cannot meet the requirements of expressway, The needs of main roads; solar street lighting has not yet established industry standards; environmental protection and anti-theft issues, and improper battery handling may cause environmental issues. In addition, anti-theft is also a big problem.
The LED street lights is applied to the street lamp through the special light shape design of the LED street lights, which can offset the luminous angle of the lamp and improve the lighting utilization rate of the roadside; according to the rectangular aspect ratio, the aspect ratio can be 2: 1 light spot, so that there will be no shadows between adjacent light spots, and a bright light band with uniform illumination can be formed on the road, which is more in line with the current lighting design of traffic roads, without the need to increase the height of the light pole. It satisfies a wide enough illumination range, and also improves the lighting efficiency of the lamps and reduces the lighting power density of the road, so as to truly achieve energy saving and green environmental protection. The high-power Outdoor LED street light is used for road lighting. Compared with the traditional high-pressure sodium lamp, it has nothing Comparable advantages: 1. The light-emitting mechanism is different. Because outdoor LED street light are a kind of semiconductor device, their effective life can reach 50,000 hours (that is, the light attenuation is less than 30% after 50,000 hours), which is much higher than sodium lamps and metal halide lamps (their life is about In 12000-15000 hours). 2. Since the LED street light is a semiconductor material, there is no filament or other additional materials, so it has good shock resistance. 3. The color rendering index of LED street light source lighting can reach above 80, which is relatively close to natural light. In this case, human eyes can distinguish things more easily, which is beneficial to driving safety; while the color rendering index of high-pressure sodium lamps is only 20-30. 4. Traditional gas discharge lamps such as high-pressure sodium lamps have a preheating process when starting, which wastes energy and is not conducive to intelligent control; outdoor LED street light are essentially different in light sources, so there is no "start-up time" problem , It can work normally immediately after power-on, and can realize intelligent energy-saving control very conveniently. 5. Since traditional street light sources use mercury vapor mechanism to emit light, the disposal of waste light sources is also an urgent problem to be solved worldwide. At the same time, the light-emitting mechanism of traditional light sources determines that it emits ultraviolet rays that are harmful to the human body. The LED street light source is solid-state lighting, without harmful substances such as mercury and other elements, and it does not emit ultraviolet rays. Therefore, it is an environmentally friendly light source. 6. In the optical system, the traditional street light source emits omnidirectional light, half of the light needs to be reflected by the reflector, and the reflector needs to absorb part of the light, so the light loss is relatively large. Since LED street lights emit light in one direction, the utilization rate of light is higher than that of traditional street lights. 7. The light distribution curve of the traditional street lamp is determined by the reflector, so it has certain limitations, while the outdoor LED street light source is a distributed light source. The design of each electric light source can make the light source of the lamp an ideal batwing shape. , By reasonably controlling the light distribution, the pavement spot is rectangular, and within the effective irradiation range, a higher uniformity of illuminance can be obtained. 8. More complete automatic control (optional): Different brightness can be set according to the needs of different time periods, which further improves the effect of energy saving. For example, the brightness is 200W at 7 o'clock in the evening, and when there are few people at midnight, the brightness is automatically adjusted to 100W, of which 60W can be saved.At present, lighting consumption accounts for about 20% of the entire power consumption, and greatly reducing lighting power consumption is an important way to save energy. Outdoor LED street light are attracting the world's attention with their solid advantages.
June 24th is the Fiesta de San Juan in Spain, one of the most lively festivals in Spain. Although this holiday has been associated with Christianity for centuries, its origin is pagan.To this day, Spaniards still celebrate this holiday every year, not only to celebrate San Juan’s birthday, but also to welcome the summer solstice (Solsticio de Verano) on June 21. In 2015, UNESCO declared it as an intangible cultural heritage.Fire is an important part of this festival. It can scare away evil souls and forget all the bad things that happened during the year. Therefore, on the eve of San Juan (Víspera de San Juan or Noche de San Juan), people set up bonfires at the highest point in the city, lit torches (las fallas), set off fireworks and firecrackers in street squares, and also discarded items. Burn a torch to celebrate this holiday. Dancing and fireworks, food and bonfires, people began to carve until the next day. Spain has such a city of San Juan (SAN JUAN), a city under the Autonomous Community of Catalonia, near Barcelona. This is a very unique city with a history of more than 2,000 years. This San Juan festival is said to come from this city, and then swept all over Spain. Because of its long history and many ancient castles, this city has become a mecca for tourists from all over the world.Due to the long time, many road lightings have been in disrepair for a long time, and government departments hope to update the entire city's lighting system. The requirements for this bidding are very demanding. First, all lamps are required to have ENEC certification and pass a series of tests. These are not problems for the team of CHZ Lighting Spain. First of all, all of our street lamp products have ENEC certification, and the product quality fully meets the requirements of customers; then, our team conducted a field survey of the entire renovation area, such as road width, light pole height, etc., refer to customer contrast And the requirements of uniformity, lighting calculations have been carried out for all roads, and the most suitable products have been selected. Finally, the selected products are street lights ST23, ST25, and garden lights ST26A. There are many brands participating in the bidding. In addition to the traditional European powers, such as PHILIPS and THORN, there are also many Chinese brands. The competition is very fierce. Finally, relying on our reliable brand and professional design, won the trust of government departments and won this project.Entering the supply stage, the technical team and construction team of the Spanish company began to settle in and do every detail work. This time, for different streets, we chose ST23-90W, ST25-38W and other street lights as well as ST26A-37W, ST26A-56W, Garden lights such as ST26A-90W, and choose the most suitable light distribution, to achieve the ultimate work; if a palace is restored, the goal is to rejuvenate the ancient palace. After the intense construction of the Spanish team of CHZ Lighting, within one month, most of the project progress was completed. The whole set of results is shocking. Many citizens are very satisfied with this effect. The praise is beyond my imagination! The project is still in progress and is expected to be completed in mid-March. Judging from the current situation, the completed blocks have won high praise from government departments this year, and a large number of citizens have begun to cheer on the streets. This year's Fiesta de San Juan will be even more exciting. For the renovation of other blocks, the government departments can’t wait to meet with our team and express their admiration for the professionalism and dedication of our team. Our company will continue to uphold the highly responsible spirit and complete the renovation of this street light. At the same time, we will continue to work hard to contribute more high-quality projects to the road lighting industry in the Barcelona region and the entire Catalonia Autonomous Region.