FIG. 1 is a perspective view of the first embodiment of a headlamp showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is a perspective view of the second embodiment of the headlamp without USB port on the bottom of the headlamp;
FIG. 9 is a front view thereof;
FIG. 10 is a back view thereof;
FIG. 11 is a left view thereof;
FIG. 12 is a right view thereof;
FIG. 13 is a top view thereof;
FIG. 14 is a bottom view thereof;
FIG. 15 is a perspective view of the third embodiment of the headlamp with a second switch added on the top of headlamp;
FIG. 16 is a front view thereof;
FIG. 17 is a back view thereof;
FIG. 18 is a left view thereof;
FIG. 19 is a right view thereof;
FIG. 20 is a top view thereof;
FIG. 21 is a bottom view thereof;
FIG. 22 is a perspective view of the fourth embodiment of the headlamp with a second switch added on the top of headlamp and without USB port on the bottom of headlamp;
FIG. 23 is a front view thereof;
FIG. 24 is a back view thereof;
FIG. 25 is a left view thereof;
FIG. 26 is a right view thereof;
FIG. 27 is a top view thereof; and,
FIG. 28 is a bottom view thereof.
The broken lines show portions of the article which form no part of the claimed design.