因为是亮灯鞋子不是USB接口的，是鞋底的一个电池蓄电发光随着时间有时候会导致不发光，一只亮一只不亮等情况或者一只明一只暗都是正常的，如果出现光线的问题u0026nbsp;比如左右明暗不同，u0026nbsp;左右亮灯深浅，一只会亮一只不会亮u0026nbsp;，色彩不均衡等问题u0026nbsp;我们是不作为质量问题处理的，介意者慎拍！

The light shoes is not the USB interface， it is a battery on the sole of the shoes to store electricity. If there are light problems such as different light and dark， left dark and right light or one light the other one can’t light ， we are not as quality issues. Do not purchase if you mind this ，thanks!