The LED flood lighting is a point light source that can illuminate uniformly in all directions. Its illumination range can be adjusted arbitrarily, and it appears as a regular octahedron icon in the scene. Floodlights are the most widely used light source in the production of renderings. Standard floodlights are used to illuminate the entire scene. Multiple floodlights can be used in the scene to produce better results.Flood lighting are the most widely used light source in renderings. Multiple floodlights can be used in the scene to coordinate their effects to produce better results. It is to illuminate the object uniformly in all directions from a specific point. It is best to use it as an analogy to a light bulb and a candle. Floodlights can be placed anywhere in the scene.For example, it can be placed outside the camera's range or inside an object. It is common to use many different colored floodlights in the scene at a distance. These floodlights can project and blend the darkness on the model. Because the floodlight has a relatively large illumination range, the illumination effect of the floodlight is very easy to predict, and there are many auxiliary uses of this kind of light. For example, if the floodlight is placed close to the surface of the object, it will be on the surface of the object. It produces a bright light.It should be noted that the floodlights cannot be built too much, otherwise the renderings will appear flat and dull. Therefore, in the usual rendering of renderings, pay more attention to the impact of lighting parameters and layout on the light perception of the entire renderings scene, accumulate more experience, and master the lighting matching skills.Features of flood lighting:Under small current, the temperature rise of LED flood lighting is not obvious. If the ambient temperature is high, the dominant wavelength of the LED floodlight will be red-shifted, the brightness will decrease, and the uniformity and consistency of the luminescence will deteriorate. In particular, the temperature rise of dot matrix and large display has a more significant impact on the reliability and stability of LED floodlights. So the heat dissipation design is very important.
Stadium sport lighting sources can be incandescent lamps, fluorescent lamps, metal halide lamps, high-pressure sodium lamps and other types of lamps. These light sources have certain advantages, but they also have certain limitations. For example, stadium lighting requires high color rendering and color temperature to meet the needs of TV broadcasting. At the same time, the light source should ensure the most sufficient light intensity under the premise of the most energy-saving, in line with the principle of economical design. After years of research and practice, metal halide lamps are widely used as the light source of sports lighting in the world. Small gymnasiums have lower ceilings and more use of incandescent lamps.In addition to the type of luminaire, the gymnasium should also choose according to the lighting efficiency of the luminaire. Commonly used are deep-illuminated, oblique-illuminated or flood-illuminated luminaires. These types can not only ensure the illumination of the horizontal plane, but also ensure the verticality. The illuminance of the surface.Due to the large space of indoor gymnasiums, most of the light sources adopt the method of adding reflectors to improve the efficiency and intensity of light. However, due to the fierce sports such as balls, most of the light sources need to be equipped with protective nets. Moreover, the location of the ceiling is relatively high, and the lamps and lanterns have certain difficulties in installation, maintenance and maintenance.The lighting control system of a comprehensive gymnasium sport lighting should have the following characteristics:1) The light source has good color temperature and color rendering, and sufficient illumination, which can meet the daily training and competition needs of athletes;2) Improve the lighting layout plan and simplify the operation steps, thereby reducing operating costs; 3) In addition to the basic lighting needs, in order to cooperate with various commercial activities, the lighting should be fashionable.
With the development of the new era and the advancement of science and technology, many new energy sources are constantly being developed. Solar energy has become a very popular new energy source because for us, the energy of the sun is inexhaustible and inexhaustible. Exhausted, this clean, non-polluting, environmentally friendly energy can indeed bring great benefits to our lives. Now there are many applications of solar energy. The application of solar street lights is one of them. Let’s take a look at the advantages of solar street lights.1. Energy-saving, solar street lights use natural light sources in nature, reducing electrical energy consumption;2. Safety. Mains lighting street lights may have safety traps caused by various reasons such as construction quality, material aging, power supply failure, etc.;3. Environmental protection, solar street lights are pollution-free and radiation-free, in line with modern green environmental protection concepts;4. High-tech content, solar street lights are controlled by intelligent controllers, which can automatically adjust the brightness of the lights according to the natural brightness of the sky and the brightness that people need in various environments;5. Durable, most of the current production technologies of solar cell modules are sufficient to ensure that the performance does not decline for more than 10 years, and solar cell modules can generate electricity for 25 years or more;6. The maintenance cost is low. In remote areas far away from towns, the cost of maintaining or repairing conventional power generation, power transmission, street lights and other equipment is very high. Solar street lights only require periodic inspections and very little maintenance, and their maintenance costs are less than conventional power generation systems;7. The installation components are modularized, and the installation is flexible and convenient, which is convenient for users to choose and adjust the capacity of solar street lights according to their needs;8. Self-powered, off-grid solar street lights have the autonomy and flexibility of power supplyThe advantages of solar street lights will inevitably make solar street lights a favored product for outdoor lighting. I believe people must have a new understanding of this new type of street light. Now the technology of solar street lights is still being constantly improved, and people’s lives will be continually benifit from this high-tech solar street light products.
With the rapid development of photovoltaic power generation and LED lighting, solar lighting products are favored by more and more people. Solar street lights are easy to install, do not need wiring, and can save electricity bills. They are ideal road lighting fixtures. With the improvement of people's lives and the continuous development of society, they are widely used and known by more and more people.Solar street lights are divided into integrated solar street lights and split solar street lights. The integrated solar street light may be more expensive to purchase, but it is more beautiful overall and more convenient to transport. It can be used in the renovation of residential street lights and factory renovation. The disadvantage of some integrated solar street lights is that they cannot be used for high power, because the sun receiving area is limited, the angle cannot be adjusted, and the efficiency is not high enough. Split solar street lightHowever, solar street lights have not been widely used in various territories, and the reason still has a lot to do with the price. The price of solar street lights is directly related to its configuration, and the configuration determines the price. For example, the solar street lamp battery has enough cycles of charge and discharge, low self-discharge rate, long service life, strong deep discharge capability, high charging efficiency, and can be maintained with little or no maintenance. ★★ What configuration is related to the price of solar street lights?1. LED light source: Solar street lights generally use LED light sources, and often use 1W high-power lamp beads. Generally, the power of one lamp bead is 1W, and how many lamp beads are how many watts;2. Solar panels: solar street light panels generally use monocrystalline and polycrystalline, and the price of monocrystalline is higher than that of polycrystalline. Generally, customers do not have professional measuring instruments to purchase. It is recommended to use the size and area to measure and measure. The larger the size and area, the greater the power of the solar panel. The size of the solar panel is proportional to the power of the solar panel.3. Battery: Solar street lamp batteries are generally divided into three types: lead-acid batteries, gel batteries and lithium batteries. At present, colloidal and lithium batteries are commonly used. The cost of lithium batteries is higher than that of colloids, and the cost of colloids is higher than that of lead-acid batteries.4. Light pole: The height, shape and parameters of the light pole are mainly considered. The higher the height of the light pole, the higher the corresponding parameters and the higher the price. The more complicated the shape of the light pole, the higher the price. ★★ How do I choose a solar street light?1. The power of solar street lights depends on the width of the road and the surrounding environment, the height depends on the width of the road, and the line spacing depends on the power of the light source and the secondary light distribution of the lamps. Powerful street lamp manufacturers can provide light distribution design simulation based on these elements so that we can choose a better solution.2. LED lights are usually used as the lighting of solar street lights, but the quality of LED lights is not uniform. We have to choose reliable LED lights with long life, high luminous efficiency and slow luminous decay, which basically depends on the street lamp manufacturer . Choose a regular and guaranteed LED street light manufacturer.3. The service life of the battery should also be considered in the application of the entire street lamp system. The general battery is guaranteed for three or five years. The general battery will be unsatisfactory after half a year. Some actual charging rates may drop to 50%. This will definitely affect the night during continuous rainy days, so it is especially important to choose a better battery. The following provides the calculation formula for solar panel and battery configuration:(1): First calculate the current:Such as: 12V battery system; 2 40W lamps, a total of 80 watts.Current=80W÷12V=6.7 A(2): Calculate the battery capacity requirement:For example, the cumulative lighting time of street lights every night needs to be 7 hours (h) of full load; (such as turning on at 8:00 in the evening, turning off 1 channel at 11:30 in the evening, turning on 2 channels at 4:30 in the morning, and turning off at 5:30 in the morning). Lighting demand for 5 consecutive rainy days. (5 days plus the lighting of the night before rainy days, totaling 6 days)Battery = 6.7A × 7h × (5+1) days = 6.7A × 42h = 280 AHIn addition, in order to prevent the battery from overcharging and over-discharging, the battery is generally charged to about 90%; about 20% is left for discharge. So 280AH is only about 70% of the real standard in the application.(3): Calculate the peak demand (WP) of solar panels:The accumulated lighting time of street lights every night needs to be 7 hours (h);The solar panels receive an average of 4.5 hours (h) of effective light per day; at least relax the 20% reserve for solar panels. WP÷17.4V=(6.7A × 7h × 120%) ÷ 4.5hWP÷17.4V=12.5WP = 217 (W): 4.5 hours of sunshine per day is the sunshine coefficient in the vicinity of the middle and lower reaches of the Yangtze River. In addition, in solar street light components, the line loss, the loss of the controller, and the power consumption of the ballast or constant current source are different. In actual applications, it may be about 5%-25%, so 162W is only a theoretical value. The situation needs to increase.4. The choice of the controller is often overlooked. Although it is the least valuable part of the entire street light system, it is a very important link. The damage of the controller directly affects the life of the solar components and the purchase cost of the entire system.(1): The controller with lower power consumption should be selected. The controller works 24 hours a day. For example, it is better to choose a controller with power consumption below 1 mA (MA).(2): Choose a controller with high charging efficiency, which has the MCT charging mode to track the maximum current of the battery panel, especially in winter or when the light is insufficient, the MCT charging mode is about 20% more efficient than other modes.(3): Controllers that regulate power. Controllers with power regulation have been widely promoted. During the night when pedestrians are scarce, it can automatically close one or two lighting channels and adjust the power of LVD lights. In addition to selecting the above power-saving functions, you should also pay attention to the controller's protection function for batteries and other components. A controller can protect the battery well and increase the battery life. In addition, when setting the controller undervoltage protection value, try to minimize the undervoltage protection value. The voltage protection value is set low to prevent over-discharge of the battery. ★★Matters needing attention in the practical application of solar street lights1. Pay attention to anti-theft work in places far from the urban area. Many engineering companies fail to implement effective anti-theft due to negligence in construction, resulting in the theft of storage components, which not only affects normal lighting, but also causes unnecessary property losses. At present, most of the stolen batteries in engineering cases are batteries. The burying of batteries is an effective anti-theft measure. It is best to weld and strengthen the battery box on the light pole.2. The controller is waterproof. The controller is generally installed in a lampshade or battery box, and water is generally not allowed to enter. However, in actual engineering cases, the controller terminals are short-circuited by rainwater flowing into the controller along the cable. Therefore, during construction, you should be careful to bend the internal connection wire into a "U" shape and fix it, and connect the external connection to a "U" shape, so that rainwater cannot enter and cause the controller to short-circuit. In addition, waterproof glue can be applied to the internal and external wiring interfaces .3. In many practical applications of solar street lights, solar street lights in many places cannot meet the normal lighting needs, especially in rainy days. In addition to the poor quality related components, another main reason is to blindly reduce the cost of the components, do not design and configure according to requirements, and reduce the power of battery panels and batteries, which makes street lights unable to provide lighting on cloudy and rainy days. So when you are ordering solar street lights, you must figure out what configuration solar street lights you need, where they are mainly used, whether they are used frequently, and what are their brightness and life requirements. A set of solar street lights with very good configuration, It can accept the sun's rays well, the brightness of the light is very high, the light is also very soft, it will not hurt the eyes, and the lighting time is relatively long, if there is rainy weather in the middle, it can also be continuously illuminated put.