FIG. 1 is a front perspective view of a lamp housing, illustrating our new Design;
FIG. 2 is a top view thereof, the bottom view being a mirror image thereof;
FIG. 3 is a front end view thereof;
FIG. 4 is a rear end view thereof; and,
FIG. 5 is a side elevational view, with the opposite sides being a mirror image thereof, and with the broken line showing for illustrative purposes only and forming no part of the claimed design.