The ornamental design for a ledlamp, as shown and described.
FIG. 1 is a top perspective view of an LED lamp, showing our new design;
FIG. 2 is bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a back view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line illustrations of environmental and other structures in the drawings are not part of the design sought to be patented. The shade lines in the drawings show contour and not surface ornamentation.