We claim the ornamental design for a task light, as shown and described.
FIG. 1 is a perspective view from below of the task light showing our new design;
FIG. 2 is a perspective view from above thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a front 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; and,
FIG. 8 is a bottom plan view thereof.
The broken lines shown in the drawings are included for the purpose of illustrating unclaimed portions of the task light and form no part of the claimed design.