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How does lamp vacuum affect lamp life?

April 26, 2017affect lamp life vacuum

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How does lamp vacuum affect lamp life?

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The degree of vacuum achieved during the lamp sealing process has a pronounced affect on lamp life. While seldom addressed as part of a lamp specification, the greater the vacuum, the longer and more stable the lamp life. If oxygen is left within the lamp envelope due to an inferior vacuum process, it will react with the filament and produce early failures.