Modular luminaire

FIG. 1 is a front, upward perspective view of a modular luminaire;

FIG. 2 is a front, downward perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a front elevational view thereof.

The broken lines represent elements which form no part of the claimed design.