We claim the ornamental design for a light fixture housing, as shown and described.
FIG. 1 is a front perspective view of a light fixture housing showing my new design.
FIG. 2 is a rear perspective view of the design shown in FIG. 1.
FIG. 3 is a right side view of the design shown in FIG. 1.
FIG. 4 is a left side view of the design shown in FIG. 1.
FIG. 5 is a front view of the design shown in FIG. 1.
FIG. 6 is a rear view of the design shown in FIG. 1.
FIG. 7 is a top view of the design shown in FIG. 1; and,
FIG. 8 is a bottom view of the design shown in FIG. 1.
The broken lines immediately adjacent to the shaded areas depict the bounds of the claimed design, while all other broken lines are directed to environment. The broken lines form no part of the claimed design.