The ornamental design for a solarpoweredlamp, as shown and described.
FIG. 1 is a front elevation view of the solar powered lamp showing only the lamp portion of my new design, the support being omitted for illustrative purposes only;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof, the right side being a mirror image of the left side view;
FIG. 4 is a top plan view of the solar powered lamp showing my new design;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a perspective view of the solar powered lamp showing only the lamp portion of my new design, the support being omitted for illustrative purposes only; and,
FIG. 7 is another perspective view of the solar powered lamp showing my new design.