China's National Development and Reform Commission has since issued the "China's Roadmap for Phase-out of Incandescent Lamps". The roadmap stipulates that from October 1, 2012, it prohibits the import and sale of incandescent lamps of 100 W or more for general lighting. It is expected to be October 1, 2016. Starting from the day, the import and sale of incandescent lamps of 15 watts or more are prohibited. This means that the general lighting of incandescent lamps has been phased out in China. With the gradual disappearance of incandescent lamps, LED lights as a new force for energy conservation and environmental protection have gradually emerged and are well known.
In view of the rising price of fluorescent powder, the cost of ordinary energy-saving lamps has been rising, and the new LED lamps as lighting fixtures have gradually entered the public view. Ever since the birth of LED lights, its brightness has been continuously improved, and LED lights have gradually entered the field of LED lighting. LED downlights slowly transformed from the high-end lighting upstart to the new darling of the application market.
Downlights are generally used in interior lighting in shopping malls, offices, factories, hospitals, etc. The installation is simple and convenient for people to love. LED downlight inherits all the advantages of traditional downlights, small heat, long life and low maintenance costs. Early LED downlights were not accepted by customers due to the high cost of LED lamp beads. With the price reduction of LED downlight chips and the improvement of heat dissipation technology, it has laid a solid foundation for LED downlights to enter the commercial field.
LED downlight consists of LED lamp beads, downlight housing, and power supply. For downlights, it is advisable to use high-power lamp beads such as single 1W lamp beads. It is not appropriate to use low-power lamp beads such as 5050, 5630. The reason is that LED low-power lamp beads are bright enough but their light intensity is not enough. LED downlights generally have a vertical distance of 4-5 meters. Due to the low power light intensity, the ground light intensity is insufficient, and the high light intensity of the high-power lamp beads, especially the integrated light source, becomes the first of LED downlight manufacturers. Currently widely used is high-power lamp beads such as single 1W lamp beads, made of downlights 1W, 3W, 5W, 7W, 9W, etc., the maximum can generally be made of 25W, if you use high-power integrated solutions can also be higher power.
There are three main parts that determine the life of the downlight: LED lamp bead, LED heat sink "housing design", LED power supply. LED lamp beads manufacturers determine the main life of LED downlights, the current foreign high-quality chip manufacturers are the United States CREE, Japan, Japan and Japan (Nichia), cost-effective Taiwanese manufacturers crystal electricity (in China refers to the purchase of crystal LED chips to take The products to be packaged are mostly produced by Taiwan or cross-straits packaging plants in China, such as Yiguang, etc. Mainland manufacturers have Sanan Optoelectronics, Yingrui Optoelectronics, etc.
In general, high-quality LED downlight manufacturers will use foreign companies such as Cree's LED chips, which is at least one of the high-stability products recognized in the market. The lights made in this way have a high natural brightness and a long life, but they are also expensive. The chips used by Taiwanese manufacturers have a long life, but the prices are relatively low, and they can basically be accepted by customers in the Chinese domestic market. In China's domestic market, the chip life is shorter and the light fades, but the lowest price is the first choice for many small manufacturers to fight prices. What kinds of LED lamp beads and LED chips are used also directly determine the positioning of LED downlight manufacturers and the social responsibilities that they present in the industry.
The LED power supply is the heart of LED downlights and has a great impact on the lifetime of LED downlights. In general, LED downlights are all 110-220V power supply, and China's domestic market is 220V power supply. Due to the short development time of LED lamps, the country has not yet set a standard for its power supply. Therefore, the LED power supply on the market is uneven, and the number of low PF values ​​is so low that it cannot completely flood the market with EMC's power supply. The life of the electrolytic capacitor of the power supply also directly determines the life of the power supply. Because everyone is sensitive to price, trying to reduce the cost of the power supply, resulting in low conversion power of the LED power supply, the service life is not long, so that the LED downlight has changed from a "longevity lamp" to a "short life." light".
The thermal design of LED downlights also has a major influence on their lifetime. The heat of the LEDs is transmitted from the lamp beads to the internal PCB and then to the housing, which then passes through convection or into the air. PCB heat dissipation is fast enough, thermal grease thermal performance is good enough, the heat dissipation area of ​​the shell should be large enough, a reasonable design of several factors determines the PN junction temperature can not be higher than 70 degrees when the LED light works normally, in order to guarantee the LED The chip is at normal operating temperature and will not suffer from light decay due to excessively high temperatures.
With the rapid development of LED downlight technology, a large number of responsible manufacturers gradually realize the importance of quality. Only accurate quality products can impress customers to replace traditional light sources and resolve their worries.
Shanghai Shengmei Electronic Technology Co., Ltd. believes that the quality of LED downlights determines the development of downlights in the future. To effectively eliminate the development of LED downlights, it is necessary to work hard on quality, truly efficient lighting, and long life of 5W hours. Above, the future of LED downlights is really lit with high quality and impeccable products. In addition to quality assurance, the industrial design improvements for the appearance of LED downlights must also be on the agenda.
The future development of LED downlight in addition to strict quality control, due to the advantages of LED solid state lighting, there are more and more creative appearance than traditional lighting can choose, must break the traditional modeling ideas, truly LED downlight Everything is done, people use their best. Give full play to the characteristics of LED lamp energy-saving heat is also widely used in mechanical equipment and other equipment lighting.
The use of LED downlights is becoming more and more widespread, and a variety of poor LED downlights are also on the streets, and the quality of the unstable downtime from time to time to break the expectations of the new favorite of downlights. Due to the lack of LED industry standards, consumers have no way to complain about low-quality manufacturers, and cast a thick shadow on the future development of LED downlights. Is it in the pessimistic wait-and-see of the market, or is it struggling under the pressure of survival? Time will give us an answer. The answer is to rely on a large number of responsible manufacturers to work together to gain. The introduction of new standards for the development of LED downlights for our help, but also for the majority of LED manufacturers, not to destroy the overall development of LED downlights in front of the petty profits. The future of LED downlights is bright, but we must be ambitious, and it will only come faster in the spring.
In view of the rising price of fluorescent powder, the cost of ordinary energy-saving lamps has been rising, and the new LED lamps as lighting fixtures have gradually entered the public view. Ever since the birth of LED lights, its brightness has been continuously improved, and LED lights have gradually entered the field of LED lighting. LED downlights slowly transformed from the high-end lighting upstart to the new darling of the application market.
Downlights are generally used in interior lighting in shopping malls, offices, factories, hospitals, etc. The installation is simple and convenient for people to love. LED downlight inherits all the advantages of traditional downlights, small heat, long life and low maintenance costs. Early LED downlights were not accepted by customers due to the high cost of LED lamp beads. With the price reduction of LED downlight chips and the improvement of heat dissipation technology, it has laid a solid foundation for LED downlights to enter the commercial field.
LED downlight consists of LED lamp beads, downlight housing, and power supply. For downlights, it is advisable to use high-power lamp beads such as single 1W lamp beads. It is not appropriate to use low-power lamp beads such as 5050, 5630. The reason is that LED low-power lamp beads are bright enough but their light intensity is not enough. LED downlights generally have a vertical distance of 4-5 meters. Due to the low power light intensity, the ground light intensity is insufficient, and the high light intensity of the high-power lamp beads, especially the integrated light source, becomes the first of LED downlight manufacturers. Currently widely used is high-power lamp beads such as single 1W lamp beads, made of downlights 1W, 3W, 5W, 7W, 9W, etc., the maximum can generally be made of 25W, if you use high-power integrated solutions can also be higher power.
There are three main parts that determine the life of the downlight: LED lamp bead, LED heat sink "housing design", LED power supply. LED lamp beads manufacturers determine the main life of LED downlights, the current foreign high-quality chip manufacturers are the United States CREE, Japan, Japan and Japan (Nichia), cost-effective Taiwanese manufacturers crystal electricity (in China refers to the purchase of crystal LED chips to take The products to be packaged are mostly produced by Taiwan or cross-straits packaging plants in China, such as Yiguang, etc. Mainland manufacturers have Sanan Optoelectronics, Yingrui Optoelectronics, etc.
In general, high-quality LED downlight manufacturers will use foreign companies such as Cree's LED chips, which is at least one of the high-stability products recognized in the market. The lights made in this way have a high natural brightness and a long life, but they are also expensive. The chips used by Taiwanese manufacturers have a long life, but the prices are relatively low, and they can basically be accepted by customers in the Chinese domestic market. In China's domestic market, the chip life is shorter and the light fades, but the lowest price is the first choice for many small manufacturers to fight prices. What kinds of LED lamp beads and LED chips are used also directly determine the positioning of LED downlight manufacturers and the social responsibilities that they present in the industry.
The LED power supply is the heart of LED downlights and has a great impact on the lifetime of LED downlights. In general, LED downlights are all 110-220V power supply, and China's domestic market is 220V power supply. Due to the short development time of LED lamps, the country has not yet set a standard for its power supply. Therefore, the LED power supply on the market is uneven, and the number of low PF values ​​is so low that it cannot completely flood the market with EMC's power supply. The life of the electrolytic capacitor of the power supply also directly determines the life of the power supply. Because everyone is sensitive to price, trying to reduce the cost of the power supply, resulting in low conversion power of the LED power supply, the service life is not long, so that the LED downlight has changed from a "longevity lamp" to a "short life." light".
The thermal design of LED downlights also has a major influence on their lifetime. The heat of the LEDs is transmitted from the lamp beads to the internal PCB and then to the housing, which then passes through convection or into the air. PCB heat dissipation is fast enough, thermal grease thermal performance is good enough, the heat dissipation area of ​​the shell should be large enough, a reasonable design of several factors determines the PN junction temperature can not be higher than 70 degrees when the LED light works normally, in order to guarantee the LED The chip is at normal operating temperature and will not suffer from light decay due to excessively high temperatures.
With the rapid development of LED downlight technology, a large number of responsible manufacturers gradually realize the importance of quality. Only accurate quality products can impress customers to replace traditional light sources and resolve their worries.
Shanghai Shengmei Electronic Technology Co., Ltd. believes that the quality of LED downlights determines the development of downlights in the future. To effectively eliminate the development of LED downlights, it is necessary to work hard on quality, truly efficient lighting, and long life of 5W hours. Above, the future of LED downlights is really lit with high quality and impeccable products. In addition to quality assurance, the industrial design improvements for the appearance of LED downlights must also be on the agenda.
The future development of LED downlight in addition to strict quality control, due to the advantages of LED solid state lighting, there are more and more creative appearance than traditional lighting can choose, must break the traditional modeling ideas, truly LED downlight Everything is done, people use their best. Give full play to the characteristics of LED lamp energy-saving heat is also widely used in mechanical equipment and other equipment lighting.
The use of LED downlights is becoming more and more widespread, and a variety of poor LED downlights are also on the streets, and the quality of the unstable downtime from time to time to break the expectations of the new favorite of downlights. Due to the lack of LED industry standards, consumers have no way to complain about low-quality manufacturers, and cast a thick shadow on the future development of LED downlights. Is it in the pessimistic wait-and-see of the market, or is it struggling under the pressure of survival? Time will give us an answer. The answer is to rely on a large number of responsible manufacturers to work together to gain. The introduction of new standards for the development of LED downlights for our help, but also for the majority of LED manufacturers, not to destroy the overall development of LED downlights in front of the petty profits. The future of LED downlights is bright, but we must be ambitious, and it will only come faster in the spring.
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