Mountable light

[0001]FIG. 1 is a perspective view of an ornamental design for a mountable light;

[0002]FIG. 2 is a second perspective view thereof;

[0003]FIG. 3 is a side view of a first side thereof;

[0004]FIG. 4 is a side view of a second side thereof;

[0005]FIG. 5 is a side view of a third side thereof;

[0006]FIG. 6 is a side view of a fourth side thereof;

[0007]FIG. 7 is an end view of a first end thereof; and,

[0008]FIG. 8 is an end view of a second end thereof.

[0009]Broken lines in the drawing indicate unclaimed parts of the article that are not claimed herein, and that form no part of the claimed design.