Led sneaker lamp feature

Led sneaker lamp feature

A) Light-emitting shoe sleeve, made of insulating material, has an upper end surface and a lower end surface opposite, a concave hole extending from the upper end surface to the lower end surface, the concave hole has an upward open end and a The closed end of the lower end face.

B) The concave hole has a wide-diameter portion adjacent to the open end, a narrow-diameter portion away from the open end and having a diameter smaller than the wide-diameter portion, and a shoulder connecting the wide-diameter portion and the narrow-diameter portion.