Abstract
Based on experimental data published by others, this paper examines the veracity of an expression relating the lifetime of fluorescent lamps, with ballasts to factors that contribute to electrode degradation, using different on and off times in the durability tests. Further, the relationship between conventional and accelerated durability tests characterised by different fluorescent lamp continuous operation and off times are analysed, revealing that the accelerated tests are not always shorter. Finally, based on experimental measurements of the parameters that determine lamp lifetime, the effect of applying accelerated testing to a set of lamps that had previously been subjected to a conventional durability test is analysed.
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