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LED luminaire system has lots of failure modes. And the interaction among various failure mechanisms is extremely complex. There is a great obstacle existed in assessing the system reliability of LED luminaires. Therefore, in order to quickly and accurately assess the reliability of LED luminaires products, a test procedure for indoor lighting LED luminaires is initially proposed in this study. Firstly,...
Under the global trend of energy and emission reduction, light emitting diode (LED) has attracted more and more people's attention due to its distinctive advantages of long lifetime, high reliability, low energy consumption, green environmental protection. However, in order to evaluate the reliability of LED luminaires, few or no failure time data could be obtained with the traditional accelerated...
In this paper, a multivariate system reliability estimation method based on step stress accelerated degradation testing is proposed. Firstly, the method of step stress accelerated degradation testing (SSADT) is utilized to evaluate the reliability of LED luminaries. In the test, temperature is determined as the sensitive stress. Secondly, we suppose that all the performance metrics follow normal distribution...
Currently, reliability of LED luminaires, especially LED system, has become one of the hottest researches of LED industry. However, in existing literature, almost none of them utilized step-stress accelerated degradation test (SSADT) to assess reliability of LED luminaires. While indoor lighting is close correlated to people's life, this paper takes LED bulb which produced by two different Chinese...
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