FIG. 1 is a perspective view of an LED lamp; FIG. 2 is a front view thereof; FIG. 3 is a rear view thereof; FIG. 4 is a left side view thereof; FIG. 5 is a right side view thereof; FIG. 6 is a plain view thereof; FIG. 7 is a bottom view thereof; FIG. 8 is a bottom perspective view thereof, exemplified for an electric bulb type lamp outlet; and, FIG. 9 is an exemplary view of an LED lamp for a halogen lamp outlet.