We claim the ornamental design for a "lamp mounted touch control", as shown and described.
FIG. 1 is a perspective view of the lamp mounted touch control; FIG. 2 is a
top view of the lamp mounted touch control; FIG. 3 is a bottom view of the
lamp mounted touch control; FIG. 4 is a first side view of the lamp
mounted touch control; FIG. 5 is a second side view of the lamp mounted
touch control; FIG. 6 is a third side view of the lamp mounted touch
control; and, FIG. 7 is a fourth side view of the lamp mounted touch
control.