FIG. 1 is a perspective view of the ornamental design of an enclosure portion of an extensible integrated light engine holder and power supply enclosure;
FIG. 2 is a right side view of the design shown in FIG. 1;
FIG. 3 is a left side view of the design shown in FIG. 1;
FIG. 4 is a front view of the design shown in FIG. 1;
FIG. 5 is a back view of the design shown in FIG. 1;
FIG. 6 is a top view of the design shown in FIG. 1;
FIG. 7 is a bottom view of the design shown in FIG. 1;
FIG. 8 is a perspective view of the ornamental design of an extension portion of an extensible integrated light engine holder and power supply enclosure;
FIG. 9 is a left side view of the design shown in FIG. 8;
FIG. 10 is a right side view of the design shown in FIG. 8;
FIG. 11 is a front view of the design shown in FIG. 8;
FIG. 12 is a back view of the design shown in FIG. 8;
FIG. 13 is a top view of the design shown in FIG. 8;
FIG. 14 is a bottom view of the design shown in FIG. 8;
FIG. 15 is a perspective view of the ornamental design the extensible integrated light engine holder and power supply enclosure;
FIG. 16 is a left side view of the design shown in FIG. 15;
FIG. 17 is a right side view of the design shown in FIG. 15;
FIG. 18 is a front view of the design shown in FIG. 15;
FIG. 19 is a back view of the design shown in FIG. 15;
FIG. 20 is a top view of the design shown in FIG. 15; and,
FIG. 21 is a bottom view of the design shown in FIG. 15.
The broken lines in the drawings illustrate portions of the extensible integrated light engine holder and power supply enclosure which form no part of the claimed design.