The ornamental design for the lamp housing, as shown and described.
FIG. 1 is a front side elevational view of the lamp housing in accordance
with my design, the rear side being substantially identical thereto;
FIG. 2 is a left side elevational view of the lamp housing in accordance
with my design, the right side being substantially identical thereto; and,
FIG. 3 is a top plan view of the lamp housing in accordance with my design;
and,
FIG. 4 is a bottom plan view of the lamp housing in accordance with my
design.
The curving repeated lines on the surface of the panes of the lamp housing
are intended to indicate a uniform patterned finish on the surface of the
glass and are partially shown for convenience.