We claim the ornamental design for a solar powered lighting device, as shown and described.
FIG. 1 is a front top perspective view of the claimed design;
FIG. 2 is a top view of the embodiment of FIG. 1;
FIG. 3 is a bottom view of the embodiment of FIG. 1;
FIG. 4 is a left side view of the embodiment of FIG. 1;
FIG. 5 is a right side view of the embodiment of FIG. 1;
FIG. 6 is a front view of the embodiment of FIG. 1; and,
FIG. 7 is a rear view of the embodiment of FIG. 1.
The broken line showing of the solar powered lighting device represents unclaimed portions of the article and forms no part of the claimed design. Broken lines formed by equal length dashes show unclaimed portions of the design. Broken lines formed of unequal length dashes (i.e. dash-dot) show boundaries between claimed and unclaimed portions of the design. The solar powered lighting device is shown with a symbolic break in its length, with the understanding that the portions of the article not shown in the drawings form no part of the claim design.