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While we are walking, insoles will be squashed due to our weight. We found it able to utilize this phenomenon to provide energy for Light it Up.Light it Up is a pair of shoes which is specially designed for convenient illumination in the night.A device is put inside the insole to collect the energy produced by squashing during walk. These energy would be transformed into electricity that could light the bulbs in the front of the shoes. Light it Up aims to provide a new method to solve the problem and save energy at the same time.