19. Why is the light only on one side?

The light itself in on one side of the Esca® but the lure/tackle is generally in movement all the time which means that the light is visible from all sides. This is also true of the lure lights used by many marine animals.
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Esca® – Attracts fish
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Improves all lures
Imitates nature´s lure lights
Generate EM field to lure fish
Makes lures and bait come alive

Rig Esca® with your lure – catch more fish!