FIG. 1 is a front, right and top perspective view of a plant light, showing my new design;
FIG. 2 is a rear, left and bottom perspective view thereof;
FIG. 3 is a perspective view in a using state of FIG. 1;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a right side view thereof;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof; and
FIG. 10 is an enlarged view of portion of FIG. 1 thereof;
FIG. 11 is an another enlarged view of portion of FIG. 1 thereof;
FIG. 12 is yet another enlarged view of portion of FIG. 1 thereof; and,
FIG. 13 is a perspective view in a shorten state of FIG. 1.
The broken lines shown in the drawings illustrate portions of the plant light that form no part of the claimed design. The dot dash broken lines in FIGS. 1, 10, 11, and 12 delineate areas of the figures shown enlarged and form no part of the claimed design.