We claim the ornamental design for a solar light for swimming pool stairs, as shown and described.
FIG. 1 is a front perspective view of a solar light for swimming pool stairs according to the present design, with the rails of the stairs shown in broken lines;
FIG. 2 is a side elevational view of the solar light for swimming pool stairs of FIG. 1, with the rails of the stairs shown in broken lines;
FIG. 3 is top plan view of the solar light for swimming pool stairs of FIG. 1, with the rails of the stairs shown in broken lines; and,
FIG. 4 is bottom plan view of the solar light for swimming pool stairs of FIG. 1, with the rails of the stairs shown in broken lines.
The broken lines shown on the drawings are for illustrative purposes only and form no part of the claimed design.