A method and apparatus for light transmission adapted for use in a reflective belt, safety vest, or similar devices requiring visibility of a bright and/or reflective material where a light source of one or more lighting elements is positioned to transmit light along a self-supporting elongated light transmitting member of a hot-melt adhesive thermoplastic material and a flashing circuit for the light source which includes a battery pack or any other power source convertible to D.C. voltage. The hot-melt adhesive is of a high clarity, highly flexible material which transmits light in a highly visible manner within an elongated casement of material formed of a light-colored backing material and a front strip of a translucent material adapted to transmit the light driven along the member by the light-emitting source. Any light-emitting source, either visible or invisible would be suitable for the transmitting device. Similarly, the casement of material, elongated members, light-emitting sources and circuit and D.C. power source could be mounted on either the front and/or rear panel of a safety vest where the vest is desirable for high visibility in darkness or dimly lit situations.