You are no stranger to infant formula, but have you ever thought about the plants in the plant that need careful care? Philips pioneered the "light formula" of LED plant lighting. Let's learn how Philips uses LED light to take care of plants, like a young mother taking care of her little baby. Caring "light formula" The LEDs used in gardening are completely different from the LEDs in life. They are not used for human vision, but for plant growth services. In the design of horticultural products, we should consider the relationship between different spectral combinations and plant growth, and how plants respond to light. Through different light formula studies, we can better grasp the laws of light and plant growth. Compared with traditional lighting, LED has the following four advantages: (1) Compared with traditional fluorescent lamps and high-pressure sodium lamps, LEDs have higher luminous efficiency, which means that LEDs can create higher light intensity with less energy consumption, so the advantage of LEDs is firstly energy saving. For plant producers, initial investment is important, but more important is to consider the overall investment, daily maintenance costs and operating conditions of the project in the long run, rather than simply looking at the product price. For traditional light sources, the service life is short, the light decay is severe, and it needs to be replaced constantly to ensure a good lighting environment, which means that product investment, installation investment, energy consumption of the entire project, post-maintenance costs, and replacement costs will be greatly increased. The LED light source not only reduces energy consumption, saves daily replacement costs, but also creates additional benefits for plant production, which in turn helps customers save costs. As an example, a group of companies in Shanghai had encountered many problems with fluorescent lamps before. First, energy consumption is very large, and electricity costs account for a high proportion of production costs. At the same time, because Shanghai's summer is already very hot, coupled with the large amount of heat emitted by fluorescent lamps, air conditioners are difficult to meet the temperature conditions required for plant growth. Second, the consumption of fluorescent lamps is very large, and will be replaced a lot every year. The investment and maintenance costs of products are increasing. Third, in the rooting stage of plants, the root system is not strong enough under fluorescent light conditions. After the company used LED products and solutions, although the initial investment was high, the price of the entire LED product was saved by the electricity and maintenance costs, and the low heat dissipation of the LEDs saved the cost of cooling the air conditioner, coupled with the plant production. By reducing the growth cycle, increasing the plant's strength, and increasing the survival rate, customers can recover costs in less than a year, and the project returns are very attractive. (2) At the same time, LEDs can also perform a free spectral combination, which is what Philips calls a “light formula†combination, which provides plants with a better source of light, promotes plant growth and increases plant yield. (3) Secondly, the LED light source does not have the infrared radiation of the traditional light source, and the biggest problem brought by the infrared radiation is the high heat dissipation, so the LED heat dissipation is very low, and the plant illumination can be close. For example, Philips inter-plant lighting modules can be interspersed between tall plants for fill light, which is not possible with traditional artificial light sources. (4) In addition, the LED light source is directional and controllable, and can illuminate plants in a specific direction in an efficient manner. Philips has been in the field of plant lighting for 50 years and has worked extensively with growers around the world to have a very rich experience in the effects of different light formulations, different lighting conditions and different production methods on plant production. At the same time, Philips has a strong team of plant specialists, and team members have experience in plant research or related fields in world-renowned universities and research institutes. In addition, Philips has partnered with leading research institutes such as Wageningen University in the Netherlands to receive technical support for many light formulations. These data have been continuously accumulated and collected. A meticulous solution It is very important that the LED products used in plant lighting are good. From the product point of view, luminous efficiency, luminous conversion rate, and service life are important reference indicators. Luminous efficiency and luminous conversion rate indicate energy consumption and light output. The higher the indicator, the higher the light intensity can be created with less energy consumption. The service life depends not only on the length of use, but also on how much light output the LED has after reaching the end of its useful life and what life temperature it is in. For example, Philips LED products have a service life of 25,000 hours at room temperature of 25 ° C and 90% of initial light output after the service life. For plant production, the 90% figure is very important because the 1% reduction in light represents a reduction in plant yield by 1%, while the light decay of Philips LEDs is very low. This means that the growers mean the guarantee of production. In addition, the emphasis on ambient temperature is because the lower the temperature, the longer the LED's service life. For horticultural lighting, it makes sense to measure the service life at a temperature suitable for plant production. Some merchants often give tens of thousands of hours of life, but it is not easy to mislead users when it is not indicated at what temperature. However, it is not enough that LED products are good enough. From an application perspective, it is important to pay attention to whether the LED solution meets the lighting needs of plants and whether it is suitable for environmental requirements such as temperature and humidity. It is an important factor to consider when providing suitable installation and design solutions, how far away from the plant, how large the area is installed, and how much light intensity the plant receives for growth. The project cost is also very critical, but don't look at the cost of the product separately, but look at the overall project cost and subsequent maintenance cost to measure. For example, some good products, although they are expensive, are used less in the entire project, and the cost will be lower than other programs. Moreover, good products consume less energy, have a long life, and have lower operating and maintenance costs. The choice of LED product chips is very important, and the chip determines the basic performance of the product. But LED products are not a simple chip or component, but the entire lighting system, requiring system expertise. That's why all LED manufacturers can buy the best chips, but not everyone can produce high-quality LED products. The three major factors of electronic component design, optical design, and thermal management are critical. Industrial Computers and commercial computers have always been inextricably linked. They each have their own application areas, but they affect each other and promote each other, reflecting the progress of science and technology. At present, it is better to do Sanqi Tuoda in China and Advantech in Taiwan. Advantech has a higher reputation, but its price is higher. The industrial computer site can be embedded in the machine, cabinet or placed on the operation table, and it can be used as a man-machine display interface. 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February 16, 2021