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In some play places,many children love to play on the swing.But inevitably,it's easy to knock into other children close to the swing due to the swing wiggling back and forth.
“Safety Distance ” is designed to solve this problem.We install a special lamp on the top of the swing which can project light on the ground to show the range of the swing wiggling back and forth.The energy of motion producted in swinging are transformed by the induction system in the swing into the electric energy of lamp.This swing help children to keep away from the dangerous area and to avoid the collision.