[Text / Long Zonghui] "The quality risk of after-sales is still the biggest problem for the high-power power supply of LED street lamps. One of the important reasons is that the products are installed in the street lamps without the necessary verification and reliability verification of the scientific profession. "Guangzhou Liwei Electronics Co., Ltd. (hereinafter referred to as "Liwei Electronics") Chairman Lai Gengyou said that the power supply is a key component of the life quality of LED lighting products. At present, many power supply manufacturers do not perform reliability testing and verification on the market. Producing products; it is inevitable that such products have certain quality risks.
At present, most of the LED street light orders require 30 days after the completion of the bidding. For the enterprise, the procurement time of the power supply and other materials is very tight, which means that the lighting manufacturers have certain quality risks in selecting the power supply matching verification. Nevertheless, the subjective reason cannot be ignored, that is, the power supply itself has not been verified by the necessary scientific profession at the design stage.
There are also some problems in the design of the lighting factory, such as exposing the power supply to the sun and rain. "The power supply itself is an electronic product. It does not do enough security protection. If the power supply is exposed, it will be more prone to quality problems such as aging water seepage. The probability of such a problem is naturally greater." Lai Gengyou said.
Currently, there is no uniform industry standard for LED lamps. Most of the current power supply models are designed according to the requirements of the street lamp factory, so it is difficult to achieve large-scale production. The quality and cost of the product are more difficult to control.
At the same time, the level of enterprises entering the street lamp industry is uneven, including traditional lighting companies, companies that have done engineering but have connections, just to invest in street lighting companies, and even companies that have previously done electronics industry have entered the LED street light market. These enterprises have not enough knowledge of LED street lamp technology and products, resulting in many misunderstandings in product development and parts selection.
Lai Gengyou revealed that before he encountered a lighting company, he did not know how to test the temperature of the lamp. He thought that it would be possible to test 60 °C from the outside of the lamp housing. In fact, the internal temperature was as high as 105 °C. Power supplies are products with aging life. Many internal components have a maximum temperature limit, such as a capacitor of 105 °C. According to the general principle of the power supply, the temperature is reduced by half for every 10°C increase in temperature. Therefore, sometimes the quality of the power supply company is not a problem, but the lighting factory does not have certain professional capabilities. The product design does not take into account the problem of adapting to the power supply. .
A good quality LED power supply must be built from four sites. The first is the design site, the design determines the quality, and the design itself considers the advantages and disadvantages of the solution. It is the guarantee of quality. The second is the supplier site, the quality of the material is the key to power quality. The third is the production process site, the management of the process is the guarantee of power quality, so many of our companies have introduced the purpose of ISO9000 standardization system management. The fourth is the customer site, many companies often do not pay attention to this piece, the conditions of the customer's use and the environment have been adapted and other issues are critical.
"Although the LED market is very large, there are many companies that are pouring in. We still insist on high-quality power supply." Lai Gengyou said that the power may not be as radical as some domestic power companies, but the quality will be very important. For example, the company selects high-quality devices for all of its products, and IC insists on using the products of foreign giants Infineon and ON Semiconductor. They are more flexible and more efficient in product cooperation, and can provide customers with more efficient quality services.
This year, the demand for LED high-power power supplies has increased globally. However, in the Chinese market, the trend of the second half of last year has been a little bit cold due to a series of reasons such as the government change, macroeconomics and so on. However, China is a global manufacturing center. Although the domestic market is cold, demand in foreign countries such as Europe and the United States is still rising, and competition is still fierce. Many companies choose to cut prices to grab the market.
“At present, the lamps and lanterns face the market pressure of 15%-30% price reduction every year. The power supply is a key component of the lamps, so it is necessary to improve the production efficiency through technological innovation, optimize the supplier system to ensure the best cost performance. But blindly It is not advisable to reduce the quality to achieve price reduction." Lai Gengyou said that the current five-year warranty for the power industry is already the industry's default standard. Some street lamp manufacturers that require EMC engineering require the life of the power supply to reach the energy management cycle, generally 8 years. It is a challenge for LED high-power power supply manufacturers. The quality of the big waves in the future must be the core competitiveness.
At present, most of the LED street light orders require 30 days after the completion of the bidding. For the enterprise, the procurement time of the power supply and other materials is very tight, which means that the lighting manufacturers have certain quality risks in selecting the power supply matching verification. Nevertheless, the subjective reason cannot be ignored, that is, the power supply itself has not been verified by the necessary scientific profession at the design stage.
There are also some problems in the design of the lighting factory, such as exposing the power supply to the sun and rain. "The power supply itself is an electronic product. It does not do enough security protection. If the power supply is exposed, it will be more prone to quality problems such as aging water seepage. The probability of such a problem is naturally greater." Lai Gengyou said.
Currently, there is no uniform industry standard for LED lamps. Most of the current power supply models are designed according to the requirements of the street lamp factory, so it is difficult to achieve large-scale production. The quality and cost of the product are more difficult to control.
At the same time, the level of enterprises entering the street lamp industry is uneven, including traditional lighting companies, companies that have done engineering but have connections, just to invest in street lighting companies, and even companies that have previously done electronics industry have entered the LED street light market. These enterprises have not enough knowledge of LED street lamp technology and products, resulting in many misunderstandings in product development and parts selection.
Lai Gengyou revealed that before he encountered a lighting company, he did not know how to test the temperature of the lamp. He thought that it would be possible to test 60 °C from the outside of the lamp housing. In fact, the internal temperature was as high as 105 °C. Power supplies are products with aging life. Many internal components have a maximum temperature limit, such as a capacitor of 105 °C. According to the general principle of the power supply, the temperature is reduced by half for every 10°C increase in temperature. Therefore, sometimes the quality of the power supply company is not a problem, but the lighting factory does not have certain professional capabilities. The product design does not take into account the problem of adapting to the power supply. .
A good quality LED power supply must be built from four sites. The first is the design site, the design determines the quality, and the design itself considers the advantages and disadvantages of the solution. It is the guarantee of quality. The second is the supplier site, the quality of the material is the key to power quality. The third is the production process site, the management of the process is the guarantee of power quality, so many of our companies have introduced the purpose of ISO9000 standardization system management. The fourth is the customer site, many companies often do not pay attention to this piece, the conditions of the customer's use and the environment have been adapted and other issues are critical.
"Although the LED market is very large, there are many companies that are pouring in. We still insist on high-quality power supply." Lai Gengyou said that the power may not be as radical as some domestic power companies, but the quality will be very important. For example, the company selects high-quality devices for all of its products, and IC insists on using the products of foreign giants Infineon and ON Semiconductor. They are more flexible and more efficient in product cooperation, and can provide customers with more efficient quality services.
This year, the demand for LED high-power power supplies has increased globally. However, in the Chinese market, the trend of the second half of last year has been a little bit cold due to a series of reasons such as the government change, macroeconomics and so on. However, China is a global manufacturing center. Although the domestic market is cold, demand in foreign countries such as Europe and the United States is still rising, and competition is still fierce. Many companies choose to cut prices to grab the market.
“At present, the lamps and lanterns face the market pressure of 15%-30% price reduction every year. The power supply is a key component of the lamps, so it is necessary to improve the production efficiency through technological innovation, optimize the supplier system to ensure the best cost performance. But blindly It is not advisable to reduce the quality to achieve price reduction." Lai Gengyou said that the current five-year warranty for the power industry is already the industry's default standard. Some street lamp manufacturers that require EMC engineering require the life of the power supply to reach the energy management cycle, generally 8 years. It is a challenge for LED high-power power supply manufacturers. The quality of the big waves in the future must be the core competitiveness.
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