an integrally formed single piece light strip having no internal voids , comprising first and second bus elements spaced apart from one another by a predetermined distance for operative connection to a power source . a substrate strip includes a top surface and a bottom surface having a printed circuit thereon . at least one light emitting diode , including electrical contact prongs , is provided , with the led being mounted on the top surface of the substrate strip , and with the electrical contact prongs contacting the printed circuit on the bottom surface of the substrate strip . the printed circuit is in electrical contact with the bus elements to conduct electricity thereon . an extruded plastic material completely encapsulates the first and second bus elements , with the substrate strip and the led to thereby provide a protective barrier and thereby make the light strip impervious to moisture . alternatively , an integrally formed light strip is provided that includes a plastic material extruded over first and second bus elements , a substrate strip including a printed circuit and at least one led mounted thereon to completely encapsulate the components to provide a light strip protective barrier , with the extruded plastic material being extruded to form a bottom surface defining a channel therein for facilitating connection of the strip with other like strips through a channel engaging electrical connector .