What are the Lumens of an LED Christmas Lights?
You can not directly convert since they measure different things. The most useful explanation is that lumens measure light output at the source, while candelas measure the light that falls on a surface.
As the area of the surface increases, the number of candelas will decrease even as the number of lumens remains constant.
To complicate this more here is the conversion.
Find your LED Christmas Lights beam width in degrees, and divide the candelas number in your specs by the cd/lm factor listed for that beam angle to get lumens.
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