무전극 무수은 PLS 조명기기의 수명특성 연구

In this paper, We observed degradation characteristics of luminous flux for PLS(Plasma Lighting System). Because degradation tests can be a useful tool for assessing the reliability when few or even no failures are expected in a life tests. and we also use a temperature chamber to accelerate degradation of luminous flux for PLS. As a result, Exponential distribution and equation is best suitable model for PLS.