FIG. 1 is a front perspective view of a lighting device, showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is side view of a lighting device showing a second embodiment wherein the design of the second embodiment has the same appearance as the first embodiment without the clip detail.

The broken line showing is superimposed on the continuous surface of the claimed design, is for illustrative purposes only, and forms no part of the claimed design.