Magic bulb new use avatar door handle


light bulb

It seems that everyone ignores the energy released when twisting the door handle. In addition to Jeong-Sun Park, he installs a generator and battery in the door handle to store the energy released by the twisting process to drive the bulb to be used for low-light illumination. When you need it, you can even take the light bulb and take it elsewhere.

light bulb

light bulb

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