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 front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a first side view thereof;
FIG. 5 is a second side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken line showing of light emitting diode lamp is included for the purpose of illustrating environment and forms no part of the claimed design. Applicant disclaims the bottom of the lighting module not shown in the drawings as forming no part of the claimed design.