Bo tells the good cause Tier 1 LED, do not use bipolar power devices Doug Bailey pointed out that due to the bipolar power devices cheaper than the MOSFET, usually about 2 cents a, so some designers led the drive to reduce costs Use bipolar power devices Zhengzhou where to find the best LED lights, this will seriously affect the reliability of the circuit, because as LED drive up circuit board temperature, effective operating range of the bipolar device will rapidly shrink. 2, do not use voltage of 600V MOSFET breakdown voltage of 600V MOSFET cheaper, many believe led lamp input voltage is generally 220V, 600V voltage enough so LED lights, but many times the circuit voltage to 340V, there is a surge in time, 600V breakdown of the MOSFET can be easily, thus affecting the LED lamp life, in fact, the choice of 600V MOSFET may be some cost savings, but it is the price paid for the entire board, so "Do not use 600V breakdown voltage MOSFET, the best selection of voltage over 700V MOSFET. "he stressed. 3, try not to use electrolytic capacitors LED driver circuit in the end not to use electrolytic capacitors? There are supporters and opponents, supporters believe that if you can control the temperature of the circuit board, extend the life of electrolytic capacitors in order to reach a goal, such as the choice of 105 degree life of 8000 hours of high-temperature electrolysis capacitors Zhengzhou LED lamp manufacturer which company is good, According to the prevailing electrolytic capacitor life estimation formula "the temperature is 10 degrees lower, life expectancy doubled," then it at 95 degrees ambient operating life of 16,000 hours, at 85 degrees ambient operating life of 32,000 hours LED street price of Zhengzhou know how at 75 degrees ambient operating life of 64,000 hours, less if the actual temperature, then life will be longer! Bo tells cause LED commercial lighting and now less than 15 years, technology continues to develop and improve. The extension to the manufacturers in chip packaging technology to the level of difference between the larger, different batches of the same manufacturer LED quality is uneven. Plus the difference between the application of the product design and method of use, lighting LED life entirely theoretically reach 100,000 hours. Therefore, improving the reliability of the LED is the most important LED research. The study is to improve the reliability of LED prerequisite and basis for its reliability and service life. Reliability of LED's not only from the roots of LED failure mechanisms are analyzed and then put forward to improve the program design, technology and other aspects of use, and provides a comprehensive assessment of the reliability of LED lighting products for LED early Failure screening and provide the basis for product quality management, therefore, LED Reliability of research both for LED or LED industry has a very important academic value and practical value. US Department of Energy (DOE) Solid State Lighting 2010 LED lighting technology roadmap will also strengthen product reliability testing and accelerated life testing related to the evaluation and testing technology as an important research direction in recent years, and supported by the American research institutions. Cree, Philips and other lighting giant also invested enormous human and material resources to carry out research LED reliability. Ministry of Engineering, Science and Technology, National Semiconductor Lighting Project R & D and Industry Alliance (CSA), the Guangdong Provincial Science and Technology Department in recent years has invested a lot of money to increase the reliability of LED lighting products, support and research. Zhengzhou LED street price how to know, LED lights, cause by cause Henan Bo Lighting Equipment Limited. Henan cause Bo Lighting Equipment Co., Ltd. (www.zzdybcdj.com) strong, credible, in Zhengzhou city landscape light fixtures and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improve the leading cause of innovative ideas into the brilliant and you work for a better future!