FIG. 1 is a first perspective view of a solar panel showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a perspective view of another state of the solar panel thereof;
FIG. 10 is an enlarged view of the selected portion 10 in FIG. 1; and,
FIG. 11 is an enlarged view of the selected portion 11 in FIG. 1.
The broken lines shown in the drawings depict portions of the solar panel that form no part of the claimed design.