Solar Underwater Lamp

FIG. 1 is a front, right, and top perspective view of the solar underwater lamp showing my new design; FIG. 2 is a rear, left, and bottom perspective view thereof; FIG. 3 is a front elevation view thereof; FIG. 4 is a rear elevation view thereof; FIG. 5 is a left side elevation view thereof; FIG. 6 is a right side elevation view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; and, FIG. 9 is an exploded perspective view thereof. The broken lines in the drawings depict portions of the solar underwater lamp that form no part of the claimed design.