Plant Light

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 front view thereof; FIG. 4 is a rear view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is an enlarged top plan view thereof; FIG. 8 is an enlarged bottom plan view thereof; FIG. 9 is a perspective view of the plant light in a shortened state; FIG. 10 is an enlarged view of area “ 10 ” in FIG. 1 ; and, FIG. 11 is an enlarged view of area “ 11 ” in FIG. 2 . The dot-dash broken lines depict the boundaries of the enlargements that form no part of the claimed design. The dash-dash broken lines in the drawing are for the purpose of illustrating portions of the plant light that form no part of the claimed design.