A light emitting diode (LED) or lamp is disclosed herein programmable to emit a variety of colors or hues at the selection of the user having a unitary housing of clear molded solid epoxy supporting three light dies characterized as producing color hues of red, green and blue respectively. A common cathode...http://www.google.com.au/patents/US4992704?utm_source=gb-gplus-sharePatent US4992704 - Variable color light emitting diode