Could someone please explain this phenomenon?

about year ago, used epson perfection 1250 scanner capture strip of color changing led lights 2 feet away. got uploaded image.

tried re-create effect epson perfection 1600, yet unable streaks of light achieved in original.

going on in original scan make come out did?

 

attached files:

• 

  lights.jpg

  file size:

  520.6 kb

  views:

  48

relatively long exposure?

 

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