FIG. 1 is a perspective view of a first embodiment of an ornamental design for a light emitting diode lamp unit;
FIG. 2 is a front elevational view of the light emitting diode lamp unit of FIG. 1, the rear elevation view of the light emitting diode lamp unit being the same as FIG. 2;
FIG. 3 is a right side elevational view of the light emitting diode lamp unit of FIG. 1, the left side elevation view of the light emitting diode lamp unit being the same as FIG. 3;
FIG. 4 is a top plan view of the light emitting diode lamp unit of FIG. 1;
FIG. 5 is a bottom plan view of the light emitting diode lamp unit of FIG. 1;
FIG. 6 is a perspective view of a second embodiment of an ornamental design of a light emitting diode lamp unit;
FIG. 7 is a front elevational view of the light emitting diode lamp unit of FIG. 6, the rear elevation view of the light emitting diode lamp unit being the same as FIG. 7;
FIG. 8 is a right side elevational view of the light emitting diode lamp unit of FIG. 6, the left side elevation view of the light emitting diode lamp unit being the same as FIG. 8;
FIG. 9 is a top plan view of the light emitting diode lamp unit of FIG. 6; and,
FIG. 10 is a bottom plan view of the light emitting diode lamp unit of FIG. 6.