Illumination variation over time

Hi,
I am interested in seeing data about the light output measured at the stage level over time. Including before and after changing a light source.

If anyone has that data please share it here :slight_smile:

Thank you

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Alternatively, if anyone has images of a standard taken over time please share them with us here :slight_smile:

Hello,
What type of light source? For example, mercury, LED, gas laser, solid state - they are all quite different.
Best, Jennifer