FIG. 1 is a top perspective view of a luminaire showing a first variant of the design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof;
FIG. 9 is a top perspective view of a luminaire showing a second variant of the design;
FIG. 10 is a bottom perspective view thereof;
FIG. 11 is a front view thereof;
FIG. 12 is a rear view thereof;
FIG. 13 is a right side view thereof;
FIG. 14 is a left side view thereof;
FIG. 15 is a top view thereof; and,
FIG. 16 is a bottom view thereof.
The portions of the luminaire shown in broken lines form no part of the claimed design.