each side of the board respectively engage one positive and one negative terminal and the upper contacts 271 and 272 engage common negative and positive contacts of the batteries a circuit such as the one in fig1 b can be obtained additional modifications provided by this embodiment of the invention include the provision at one end of the circuit board of a plurality of terminals 273 for accommodating the leads 260 and the inclusion in the main housing of molded in structures 274 for supporting led 275 the arrangement shown in fig8 is identical to that shown in fig7 to 7 2 except for the shapes of the housing and cover and the location of the press fit pins 277 and openings 278 corresponding elements have therefore been designated by primed reference numerals and the details of the construction of this module are not discussed further herein finally fig9 and 10 show an application of the flasher modules of any of the preferred embodiments of the invention to a shoe and in particular to the heel 314 of a shoe 310 in this figure the flasher module is designated by the reference numeral 312 the circuit board by reference numeral 316 the batteries by reference numeral 318 the led contained in the module by reference numeral 320 and additional multi colored leds by reference numerals 322 and 324 those skilled in the art.