When walking dog, the dog always runs around and pulls the dog chain.
The mechanical spring repeats contraction and elongation, the same time it transforms the mechanical energy into electrical energy which can be stored.
When at night or in the dark, just press the switch and turn on the LED light.
Then you will get brighter and more confortable environment and enjoy a new experience while walking dog.
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UP SPRING
Up Spring is a dog chain with mechanical
spring power generation system inside.
Due to dog pulling it can transform the
mechanical energy into electronic energy
which can be saved while walking dog. Then we can use it to illuminate and lead road when taking dog for a walk at night.
