Abstract: Flashing footwear includes at least one light source located on an external surface of the footwear so as to be visible. A power source provides sufficient power to illuminate the light in response to a change in the conductive state of a spring switch. A circuit is combined with the battery and switch to form a module arranged in the heel of the footwear. The switch is comprised of an electrically conducting coil spring which is fixed at one point and is free at one end. The free end is cantilevered over a substrate and includes a non-conducting weight. An electrically conducting contact arch is positioned on the substrate beneath the spring and between the fixed point and the free end, and extends towards the coil spring. The fixed point of the spring and the contact are connected to the remainder of the lighting circuit. When a sufficient force is exerted on the spring, the spring touches the contact, thus closing the switch.