A safety vest is sized to be worn by a human, wherein the vest has a front and back and left and right sides each having a shoulder portion. An EL strip is provided on each side of the vest extending from the bottom of the vest upwards toward the shoulder portion. A power source is supported by the vest...http://www.google.es/patents/US7690049?utm_source=gb-gplus-sharePatente US7690049 - EL power unit
