| Hello,
I have some fluorescents wich have strange holes in the phosphor coating. I'm asking me where does it come from?
Is it possible that the mercury has combined with the phosphorus from being stored for too long?
I can see the phenomenon in lamps that have been stored for a very long time or have not been used often.
I would be very happy about your answers.
So far no one has known an answer.
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Lamp, Street lighting, gear and valve collector.
