We claim the ornamental design for a light-emitting diode lamp, as shown and described.
FIG. 1 is a front perspective view of a light-emitting diode lamp of the present invention;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a first side view thereof;
FIG. 6 is a second side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines illustrating portions of the light emitting diode lamp form not part of the claimed design. Additionally, the unevenly broken lines in the drawings define the limits of the claimed design and form no part of the claimed design. The broken lines down the middle of the design and the brackets indicate that the appearance of any portion of the article between the break lines form no part of the claimed design.