End of Life
Mercury vapor lamps do burn out eventually as the burner electrodes wear, increasing the arc gap. As the lamp nears the end of life, lumen depreciation becomes noticeable. This comes about because the emitter is deposited as a film darkening the arctube wall and reducing light output.
Read more about this topic: Mercury-vapor Lamp
Famous quotes containing the word life:
“The general review of the past tends to satisfy me with my political life. No man, I suppose, ever came up to his ideal. The first half [of] my political life was first to resist the increase of slavery and secondly to destroy it.... The second half of my political life has been to rebuild, and to get rid of the despotic and corrupting tendencies and the animosities of the war, and other legacies of slavery.”
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